1.collapse v.倒塌;崩溃
The roof collapsed under the weight of snow.
房顶在雪的重压下突然坍塌下来。
2.association n.协会；社团;联想
Have you joined the teachers' association?
你加入教师协会了吗?
3.delegate n.代表
Babbitt was an official delegate.
巴比特是一名正式代表。
4.aerospace n.宇宙空间；航空航天学
He was a pioneer of china's aerospace industry.
他是中国航天工业的拓荒者。
5.predict v.预言；预报；预知
It is virtually impossible to predict the future accurately.
精确预言未来的事实际上是办不到的。
