HSK 7-9
反弹
fǎntán动
to bounce; to bounce back; to boomerang; to ricochet
球撞到墙后迅速反弹。
Qiú zhuàng dào qiáng hòu xùn sù fǎn tán.
The ball bounced back quickly after hitting the wall.
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Appears across levels (7-9) in the HSK 3.0 word list.