1.fail to 未能;使……失望
Some schools fail to set any homework.
有些学校没有布置任何作业
2.serve as 作为;担任
The museum will serve as a memorial to the millions who passed through Ellis Island.
这个博物馆将用来纪念经过埃利斯岛的数百万移民
3.known for 以……而著名;因……出名
He was known for his poor grammar and punctuation.
他不通语法和乱用标点是出了名的
4.in an effort to 为了;为了完成
He finally left home in an effort to counter the tyranny of arranged marriage in the old society.
他弃家出走,是对旧社会婚姻压迫的反动