trouble什么时候是单数什么时候是复数?

问题描述:

trouble什么时候是单数什么时候是复数?
RT

Trouble的用法trouble n.烦恼;麻烦;动乱;纠纷;疾病;故障;问题【Jim's Most Favorite Sentence:】My students have trouble with their pronunciation and with their fear of losing face; that's double trou...