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fall to 英 [fɔ:l tu:] 　美 [fɔl tu]

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fall to

phrase. 开始，开始进食；着手干　

And how exactly does it fall to the floor, by “gravity”?　具体地，它是怎样通过“重力“掉到地上的呢？

1. And how exactly does it fall to the floor, by “gravity”?

具体地，它是怎样通过“重力“掉到地上的呢？