【释义】
MOVE BACK 复原, [I always + adv / prep] if something springs back, open etc, it moves quickly, suddenly and with force, especially after being pushed down or sideways
弹回,反弹:
【例句】
The branch sprang back and hit him in the face.
树枝弹回来打在他的脸上。
【例句】
The gate sprang shut behind them.
大门在他们身后反弹关上了。