输不起 a sore loser

sore表示“恼火的，恼怒的”
a sore loser “输不起的人”，
英语解释为someone who gets angry or upset ,
when they lose a game or competition。
a sore point “令人恼怒的事”
a sore subject “令人恼怒的话题”

例
He's kind of a sore loser, isn't he?
他就这么输不起吗？

I never took you for a sore loser.
我从来不觉得你是一个输不起的人。
take sb./sth. for sth. “把……当成……”

输得起 a good sport