英语中， fall down, fall over 和 fall off 都有“倒下、摔倒”的意思，但是它们的用法有所不同，我们一起 …
"I fell down" ordinarily means falling onto whatever you are standing on. You can usually …
If a building is falling down, it is in a very bad condition and there is a risk that it will break …
Fall does not need an object: Mrs McGrath had a terrible fall yesterday. She’s in hospital now. …
To fall down is just a generic statement of falling - he fell down after tripping on a tree root. To …
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