1. in the mass : 总体上；
2. be a mass of : 遍布着；
形容词
1. Dark clouds massed, and we expected rain.
乌云密集，我们企盼下雨。
名词
1. A liter of gas has less mass than a liter of water.
一公升汽油的质量比一公升水的质量小。
2. Before the rain, the sky was a mass of clouds.
下雨前，天空有一团云。
3. I've masses of work to do.
我有许许多多的工作要做。
1. mass的解释
1. 马斯河：尼德兰除了东南部的山区之外,全境几乎是一片低洼的平原,这个平原是由马斯河(Mass)莱茵河(Rein)和埃斯谷河(Escaut)三条大河以及其他小河冲积而成的,境内还布满了湖泊和沼泽.
2. mass：multi-agent systems; 多主体系统
3. mass
3. mass：multimedia application shared service; 多媒体应用共享业务
4. mass：maintenance assessment scoring system; 保养工作表现评分制
5. mass的翻译
5. mass：medicine angioplasty or surgery study; 血管成形或外科研究
1. (聚成一体的)一团，一堆,一块
A mass of things is a large number of them grouped together.
e.g. On his desk is a mass of books and papers.
他的书桌上有大堆的书籍和文件。
2. 大堆;许多;大量
A mass of something is a large amount of it.
mass
e.g. She had a mass of auburn hair.
她有一头浓密的棕发。
3. 大量;许多;一大堆
Masses of something means a great deal of it.
e.g. There's masses of work for her to do...
她有一大堆的工作要做。
e.g. It has masses of flowers each year.
它每年都开许多花。
4. 一大群的;大批的
Mass is used to describe something which involves or affects a very large number of people.
e.g. ...ideas on combating mass unemployment...
对付大量失业的点子
e.g. All the lights went off, and mass hysteria broke out.
所有的灯都熄灭了，大家都变得歇斯底里起来。
5. (尤指无固定形状的)块，堆，团
A mass of a solid substance, a liquid, or a gas is an amount of it, especially a large amount which has no definite shape.
e.g. ...before it cools and sets into a solid mass...
在它冷却成为固态之前
e.g. The fourteenth century cathedral was reduced to a mass of rubble.
这座14世纪的大教堂变成了一堆瓦砾。
6. （与领导或受过高等教育的人相对的）普通老百姓，民众，平民大众
If you talk about the masses, you mean the ordinary people in society, in contrast to the leaders or the highly educated people.
e.g. His music is commercial. It is aimed at the masses...
他的音乐走商业化路线，针对的是一般大众。
e.g. This issue has aroused much resentment among the masses.
这个问题在民众中间引起了强烈的不满。
7. (民众中的)大部分，大多数
The mass of people are most of the people in a country, society, or group.
e.g. The 1939-45 world war involved the mass of the population...
1939至1945年间的世界大战使大多数民众卷入其中。
e.g. Schools allowed the mass of children to leave school at 16 with poor qualifications.
学校允许大部分考试成绩差的学生16岁时毕业离校。
8. （人）一大群，一大堆
A mass of people is a large crowd of them.
mass什么意思
e.g. ...masses of excited people clogged the streets.
情绪激动的人群挤满了街道。
e.g. ...a mass of grinning teenage faces.
一张张少年的笑脸
9. (使)聚集;(使)集中;(使)集结
When people or things mass, or when you mass them, they gather together into a large crowd or group.
e.g. Shortly after the workers went on strike, police began to mass at the shipyard...
工人们罢工后不久，警察就开始在船厂集结。
e.g. The clouds massed, whipped up by the wind...
云卷云舒随风起。
10. 充满;布满
If you say that something is a mass of things, you mean that it is covered with them or full of them.
mass的翻译
e.g. His body was a mass of sores...
他遍体鳞伤。
e.g. In the spring, the meadow is a mass of daffodils.
春天，草地上开满了黄水仙。
11. (物理学中的)质量
In physics, the mass of an object is the amount of physical matter that it has.
e.g. Astronomers know that Pluto and Triton have nearly the same size, mass, and density.
天文学家知道冥王星与海卫一拥有几乎相同的体积、质量与密度。
12. 弥撒(尤指天主教或东正教的圣餐仪式，以此纪念耶稣基督的最后的晚餐)
Mass is a Christian church ceremony, especially in a Roman Catholic or Orthodox church, during which people eat bread and drink wine in order to remember the last meal of Jesus Christ.
e.g. She attended a convent school and went to Mass each day.
她上的是教会学校，每天都去做弥撒。
13. 弥撒曲
A Mass is a piece of music which uses the prayers from the Christian ceremony of Mass as the words that are sung.
14. see also: massed;critical mass;land mass