Because of the great weight pressing down on them, these layers tend to fold downward at weak spots, and this finally causes an actual break in the crust.

由于巨大的重量向下压岩层，使它趋于在它的薄弱处向下折叠，这最终导致地壳的实质断裂。

youdao

Don't fold down the corners of the page, it damages the book.

别把书页角折起来，这要把书弄坏了。

youdao

Once it has arrived at the airport and enters onto the tarmac, it can fold down its electrically powered wings, engage its rear-facing propellor and take off down the runway.

一旦它抵达机场停机坪，它就可以展开翅膀，利用其后面的螺旋桨在跑道上起降。

youdao

"So we raise her up every morning We take her down every night, We don't let her touch the ground, And we fold her up right.

VOA: special.2010.07.02

You could think, you have to think earnings are going to go up twelve-fold to get it down to four times earnings, which will take a long, long time.

你可能会想，你必然认为收益会上涨12倍,让它回落到四倍于原来收益的地方，会花费很长一段时间。

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And they fold down to cover the USB ports and microphone jacks, acting as dust covers.

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However, the seat backs fold down easily, creating a flat-floor cargo hold with 44 cubic feet of stowage.

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The seats will fold down into beds, and each suite will have its own flat-screen monitor for in-flight entertainment.

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