1. to and fro : 来回；
副词
1. The girl came to after a while.
过了一会儿那个女孩醒过来了。
介词
1. to
1. I give a book to him.
我给他一本书。
2. She works from two o'clock to ten o'clock.
她从两点钟工作到10点。
3. The government offered to give us financial help.
政府提出在经济上给我们援助。
4. He wouldn't dare say rude things about her to her face.
他不敢当面对她出言不逊。
新年快乐
新年快乐
A：Here’s to the New Year!
祝贺新年!
to的翻译
B：Cheers!
干杯!
自责
A：How (silly/ stupid/ lame brained) of me to forget.
我竟然忘了，（真蠢/愚蠢/苯）。
B：That’s alright.
没什么。
2. 给：培训项目: 工商管理硕士(MBA) 公共管理硕士(MPA) 工程硕士(GCT) 建造师A可以说从(from)出发地前往(to)目的地:也可以说送(send)/邮寄(post)信件给(to)人或到(to)某地.
3. to：turn-off; 断开
4. to：technology operation; 技术操作
5. to：the target organ; 靶器官
6. to
6. to：technical orders; 技术指令
介词和副词用法（PREPOSITION AND ADVERB USES）
1. (表示方向、目的地)向，朝，往，到
You use to when indicating the place that someone or something visits, moves towards, or points at.
e.g. Two friends and I drove to Florida during college spring break...
我和两个朋友在大学春假期间开车去了佛罗里达。
e.g. Ramsay made a second visit to Italy.
拉姆齐第二次访问意大利。
2. 去(参加)
If you go to an event, you go where it is taking place.
e.g. We went to a party at the leisure centre...
我们去休闲活动中心参加了一个聚会。
e.g. He came to dinner...
他来赴晚宴了。
3. (表示捆、系、拴等)连接，附着
If something is attached to something larger or fixed to it, the two things are joined together.
e.g. There was a piece of cloth tied to the dog's collar...
狗项圈上系着一条布。
e.g. Many patients prefer hand-held shower heads rather than those fixed to the wall…
很多病人更喜欢手握式的淋浴喷头而不是固定在墙上的那种。
4. (表示位置)在，位于
You use to when indicating the position of something. For example, if something is to your left, it is nearer your left side than your right side.
e.g. Hemingway's studio is to the right...
海明威的工作室在右面。
e.g. You will see the chapel on the hill to your left…
你会看见那座小教堂在你左侧的山上。
5. 给，予
When you give something to someone, they receive it.
e.g. He picked up the knife and gave it to me...
他捡起刀子递给我。
e.g. Firms should be allowed to offer jobs to the long-term unemployed at a lower wage.
公司应获许以较低的工资给长期失业的人提供岗位。
6. (表示动作或情感的对象)对，于
You use to to indicate who or what an action or a feeling is directed towards.
e.g. Marcus has been most unkind to me today...
马库斯今天对我非常无礼。
e.g. …troops loyal to the government.
忠于政府的军队
7. (与某些名词、形容词连用，表示关联)对于，关于
You use to with certain nouns and adjectives to show that a following noun is related to them.
e.g. He is a witty man, and an inspiration to all of us...
他机智风趣，鼓舞激励着我们所有人。
e.g. Marriage is not the answer to everything...
婚姻并不能解决一切问题。
8. 对…(说);向…(说)
If you say something to someone, you want that person to listen and understand what you are saying.
e.g. I'm going to have to explain to them that I can't pay them.
我将不得不向他们解释我不能付钱给他们。
9. (表示反应或态度)致使，致
You use to when indicating someone's reaction to something or their feelings about a situation or event. For example, if you say that something happens to someone's surprise you mean that they are surprised when it happens.
e.g. To his surprise, the bedroom door was locked…
令他吃惊的是，卧室门锁上了。
e.g. He survived, to the amazement of surgeons.
令外科医生惊讶的是，他竟活下来了。
10. 据…认为
You use to when indicating the person whose opinion you are stating.
e.g. It was clear to me that he respected his boss...
在我看来他显然很尊重他的上司。
e.g. Everyone seemed to her to be amazingly kind.
每个人对她来说都善良得不可思议。
11. (表示变化)倾向于，趋于，至
You use to when indicating what something or someone is becoming, or the state or situation that they are progressing towards.
e.g. The shouts changed to screams of terror.
喊叫声变成了惊恐的尖叫声。
e.g. ...an old ranch house that has been converted to a nature centre.
被改建成自然中心的旧农场主住宅
12. (表示雇佣关系)为
To can be used as a way of introducing the person or organization you are employed by, when you perform some service for them.
e.g. Rickman worked as a dresser to Nigel Hawthorne...
里克曼曾是奈杰尔·霍索恩的服装师。
e.g. He was an official interpreter to the government of Nepal.
他曾是尼泊尔政府的官方译员。
13. (表示时间、数量的界限)达到
You use to to indicate that something happens until the time or amount mentioned is reached.
e.g. Every vehicle was banned from coming into Mexico City one day a week from Monday to Friday…
每周一到周五期间都会有一天禁止所有车辆进入墨西哥城。
e.g. From 1977 to 1985 the United States gross national product grew 21 percent...
从1977到1985年，美国的国民生产总值增长了 21%。
14. (用于列举时)(从…)到…
You use to when indicating the last thing in a range of things, usually when you are giving two extreme examples of something.
e.g. I read everything from fiction to history.
从小说到历史，我什么书都读。
e.g. …mechanical toys and gadgets, from typewriters to toy cars.
从打字机到玩具汽车这样的机械玩具和小巧装置
15. (表示处所、工作变动)(从…)到…
If someone goes from place to place or from job to job, they go to several places, or work in several jobs, and spend only a short time in each one.
e.g. Larry and Andy had drifted from place to place, worked at this and that.
拉里和安迪从一处漂泊到另一处，干点这个又干点那个。
16. 来回地;往复地
If someone moves to and fro, they move repeatedly from one place to another and back again, or from side to side.
e.g. She stood up and began to pace to and fro...
她站起身，开始来回踱步。
e.g. The boat was rocking gently to and fro in the water.
小船在水中轻轻地来回摇荡。
17. (表示时间)在…之前，(差…)不到…
You use to when you are stating a time which is less than thirty minutes before an hour. For example, if it is 'five to eight', it is five minutes before eight o'clock.
e.g. At twenty to six I was waiting by the entrance to the station...
5 点 40 分我正在车站入口处等着。
e.g. At exactly five minutes to nine, Ann left her car and entered the building.
安在刚好8点55分时下车进了楼。
18. (表示比率)每
You use to when giving ratios and rates.
e.g. ...engines that can run at 60 miles to the gallon.
每加仑油跑 60 英里的发动机
e.g. …a mixture of one part milk to two parts water.
由一份牛奶和两份水兑成的混合物
19. 伴随;随同
You use to when indicating that two things happen at the same time. For example, if something is done to music, it is done at the same time as music is being played.
to的翻译
e.g. Romeo left the stage, to enthusiastic applause...
罗密欧在热烈的掌声中离开了舞台。
e.g. Amy woke up to the sound of her doorbell ringing...
随着门铃叮当作响，埃米醒来了。
20. 不费事;很简单
If you say 'There's nothing to it', 'There's not much to it', or 'That's all there is to it', you are emphasizing how simple you think something is.
e.g. Once they have tried growing orchids, they will see there is really nothing to it.
一旦他们试着种植兰花，就会发现那并不是什么难事。
e.g. She's going through a difficult time. That's all there is to it.
她正经历一个困难时期。就这么简单。
21. (门)关着，虚掩着
If you push or shut a door to, you close it but may not shut it completely.
e.g. He slipped out, pulling the door to.
他溜了出去，虚掩上门。
22. see also: according to
用于动词原形前（USED BEFORE THE BASE FORM OF A VERB）
1. (用于动词原形前构成不定式;不定式用于某些动词、名词、形容词以及 how，which, where 等词之后)。
You use to before the base form of a verb to form the to-infinitive. You use the to-infinitive after certain verbs, nouns, and adjectives, and after words such as 'how', 'which', and 'where'.
e.g. The management wanted to know what I was doing there...
管理层想知道我在那里做什么。
e.g. She told ministers of her decision to resign...
她告诉了部长们她准备辞职的决定。
2. (用于动词原形前，表示动作的目的或意图)
You use to before the base form of a verb to indicate the purpose or intention of an action.
e.g. ...using the experience of big companies to help small businesses...
利用大公司的经验帮助小企业
e.g. He was doing this to make me more relaxed...
他这么做是为了使我更放松。
3. (用于动词原形前，表示对自己要说的话加以说明)
You use to before the base form of a verb when you are commenting on a statement that you are making, for example when saying that you are being honest or brief, or that you are summing up or giving an example.
e.g. I'm disappointed, to be honest...
说实话，我很失望。
e.g. Well, to sum up, what is the message that you are trying to get across?
那么，概括来说，你想要传达的信息到底是什么？
4. (用于感叹句中的动词原形前，强调某一强烈情感)
You use to before the base form of a verb in exclamations when you are emphasizing a very strong emotion, such as a desire or wish, or a regret or disappointment.
e.g. Oh, to think of his poor wife, standing there helpless…
噢！想想他可怜的妻子，无助地站在那里。
e.g. But then to be let down like that, oh it's so unfair!
但是接下来竟让人如此失望，唉，这真不公平！
5. (用于动词原形前，表示某一动作之后的情形)
You use to before the base form of a verb when indicating what situation follows a particular action.
to在线翻译
e.g. He made his way to the kitchen to find Francis cooking…
他走到厨房，发现弗朗西斯正在做菜。
e.g. From the garden you walk down to discover a large and beautiful lake...
由花园往前走，你会发现一个宽阔美丽的湖。
6. (与 too, enough 连用)
You use to with 'too' and 'enough' in expressions like too much to and old enough to .