feet的双语例句：
We felt the ground give way under our feet.
我们感觉到脚下的土地下陷了。
She is still a little unsteady on her feet after the operation.
手术以后她还有点站不稳。
Sue's back on her feet again after her operation.
休手术后又恢复健康了。
I've been on my feet all day.
我一整天没歇脚。
I've been on my feet all day.
我已经站了一整天。