waste的用法如下:
1、用作(n.)翻译为:废物;浪费;荒地
(1)The city waste is disposed of in the sea.城市垃圾倒在海里处理掉。
(2)Its only a waste of time to speak to her.和她说话纯粹是浪费时间。
2、用作动词(v.)浪费; 挥霍; 逐渐变虚弱; 变消瘦; 破坏; 毁坏
(1)All his efforts were wasted.他的所有努力都白费了。
(2)I don't take to waste your time.我不愿浪费你的时间。
3、用作形容词(adj.)废弃的; 丢弃的; 闲置的; 荒芜的
(1)They are turning waste land into paddy fields.他们正在使荒地变为稻田。
(2)Waste water from factories should be treated before flowing into rivers.工厂里的废水在流入河里之前应该经过处理。