乒乓球会弹回来,几乎保持原来速度-,并不完全相同，比例并非无限大比,但它是500比，台球实际没有任何改变。

The ping-pong ball comes back - almost with the same speed-- not quite, 1 because the ratio is not infinity to one 1 but it is 500 to one, and the billiard ball will do practically nothing.

youdao

工作是一个橡胶球，你把它丢在地上，它还会弹回来。

Work is a rubber ball. If you drop it, it will bounce back.

youdao