It's impolite to laugh ___ people ___ ___ .(嘲笑处于困境中的人们是不对的)

问题描述:

It's impolite to laugh ___ people ___ ___ .(嘲笑处于困境中的人们是不对的)

at, in touble

It's impolite to laugh at people in trouble.

at
in need/trouble