◎ 绿化 lǜ huà(1) [make green by planting trees,flowers,etc.; cloth with greenage]∶使…变为绿色,广泛种植花草树木,使环境优美卫生,防止水土流失 植树造林,绿化祖国(2) [afforest]∶种植树木花草绿化山区