Even young people should take slow steps to avoid slippering down the stairs.

即使是年轻人也应该迈着缓慢的脚步，避免滑下楼梯。

youdao

Even young people should take slow steps to avoid slippering down the stairs.

即使是年轻人也应该迈着缓慢的脚步，避免滑下楼梯。

youdao