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1·These small square stones became a problem for the building and continued to fall off the face for 40 years until a major renovation was undertaken.

这些方形的小石板成了大楼的问题，四十年来不断从外墙脱落，直到一项重大的翻新工程开始进行。

2·The investigation was undertaken primarily to mollify pressure groups.

展开该调查的目的主要是为了安抚那些压力集团。《柯林斯英汉双解大词典》

3·The UN has undertaken to reinforce its military presence along the borders.

联合国已经着手增援其驻扎在边境的军事力量。《牛津词典》

4·Miranda has undertaken a review of all of them.

米兰达对所有这些都进行了审查。

5·Process praise is acknowledgement of the efforts the person has just undertaken.

对过程的表扬是对一个人所做努力的肯定。

6·The first mission was undertaken a decade ago and broadcast live then worldwide.

第一次任务是在十年前进行的，当时在全世界进行了现场直播。

7·The preparatory work for the conference had been undertaken at two meetings of experts.

在两次专家会谈中，人们已经着手了会议的筹备工作。

8·Most of the research on smell undertaken to date has been of a physical scientific nature.

迄今为止，大多数关于嗅觉的研究都是物理科学性质的。

9·We are now engaged in a great and most glorious cause, never undertaken by our forefathers.

我们正在做我们的前人从来没有做过的极其光荣伟大的事业。

10·5 grams of radium made a decisive contribution to the success of the experiments undertaken in the years around 1930.

5克镭对1930年前后进行的实验的成功作出了决定性的贡献。