讲解文本：

can not feel one's legs 感觉不到腿了，麻木，没有知觉
I've been sitting for 3 hours and I can't feel my legs now.
我在已经坐了3个小时了，现在腿都麻了。
It's so cold here. I can not feel my hands.
这里太冷了，我的手已经失去知觉。

疯狂练习吧！