A puma will not attack a human being unless it it feels itself to be ___.
问题描述：
A puma will not attack a human being unless it it feels itself to be ___.
为什么是in a trap而不是in a corner,in a corner也有处于困境的意思啊
答
in a trap 还有落入陷阱的意思,而in a corner 则侧重人们处于困境,对于美洲狮来说,陷阱会比较现实吧~