And it ordinarily happens in the sudden changing, as sudden stop, fast move, jump and extern force etc.

它一般发生在突发性的变向动作中，如急停、急起、起跳和外力冲撞等。

youdao

And it ordinarily happens in the sudden changing, as sudden stop, fast move, jump and extern force etc.

它一般发生在突发性的变向动作中，如急停、急起、起跳和外力冲撞等。

youdao