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1·We were rebuilding homes after a major earthquake for two months.

在一场大地震发生后的两个月来，我们一直在重建家园。

2·The last time a major earthquake occurred along the Cascadia fault was in 1700, so officials worry that another event could occur any time.

上一次沿着卡斯卡迪亚断层发生的大地震是在1700年，所以官员们担心另一场大地震随时可能发生。

3·He designed a hotel that withstood a major earthquake.

在经受了一场大地震的地方他建起了一座酒店。

4·That is why many after-shocks follow a major earthquake.

这就是为什么很多余震紧跟在一个大地震之后。

5·The devastating major earthquake in Chile of 2010 struck on Feb. 27.

2010年的智力大地震发生在2月27日。

6·Scientists cannot yet calculate when there will be a major earthquake.

科学家们还无法预测何时会发生大地震。

7·Last year a major earthquake hit the area, and many people lost their homes.

去年一场大地震袭击了这个地区，很多人无家可归。

8·A major earthquake can topple huge buildings and bring down entire mountainsides.

一次大地震足以倾倒大厦，撼平山坡。

9·When the major earthquake struck last May, it originated 3.4 miles from the reservoir.

发生于去年5月份的大地震，震中距离水库只有3.4英里。

10·A major earthquake measuring 7.8 on the Richter scale has hit Wenchuan County in Sichuan.

四川省汶川县发生里氏7.8级地震。

主震

1·The quake had a magnitude of 7.7, that's what experts call a major earthquake, one of the highest magnitude classes that scientists use.

地震震级为7.7，专家们称其为一次主震，这是科学家们所使用最高的震级。