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1·Increased traffic necessitated widening the road.

交通量增大，这就需要拓宽道路。《牛津词典》

2·A prolonged drought had necessitated the introduction of water rationing.

一场持续的干旱使定量供水的引进成为必需。《柯林斯英汉双解大词典》

3·Recent financial scandals have necessitated changes in parliamentary procedures.

最近的金融丑闻使得议会程序必须改革。《牛津词典》

4·Many necessitated payments to songwriters and the music publishers, like Chrysalis, that represent them.

有很多音乐都需要向作曲者及代表他们的音乐发行商，比如向 Chrysalis 付费。

5·In 1866, the construction of the North Wing of the Treasury Building necessitated the demolition of the State Department building.

1866年，由于财政部北翼的建设工程，亟需对国务院大楼进行拆除。

6·Factory life necessitated a more regimented schedule, where work began at the sound of a bell and workers kept machines going at a constant pace.

工厂生活需要一个更严格的时间表，在那里，工作在铃声中开始，工人让机器以恒定的速度保持运行。

7·Certainly, the limitations imposed by manual labor and the locally available materials of mud-brick and timber necessitated a divergence from the original European church model.

当然，由于手工劳动和当地可利用的泥砖和木材等材料的限制，与最初的欧洲教会模式产生了分歧。

8·Your broken leg necessitated an operation.

你的断腿需要手术。

9·The need to recoup such costs necessitated long film runs.

收回这些成本需要影片长期放映。

10·Even with the tape delays necessitated by time differences.

虽然因为时差会造成录像带延误。