[-B65] The thirty-storey building is one of the most challen

问题描述：

[-B65] The thirty-storey building is one of the most challenging engineering projects they have
ever _____ .
A.undergone
B.overtaken
C.understood
D.undertaken
翻译并分析

1个回答分类：英语 2014-11-11

问题解答：

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undergo vt.经历,经受；忍受
overtake vt.赶上；压倒；突然来袭
understand vt.懂；理解；获悉；推断；省略
undertake vt.承担,保证；从事；同意；试图
这句话的意思是这幢楼是他们从事过的最具有挑战性的工程项目之一了

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