俚语口头禅：Backbone[勇气]俚语口头禅:Backbone[勇气]【句子对照】"Show a little backbone! Don't always agree with everyone at the meeting."“表现得勇敢一点儿!开会时不要总是人云亦云。”【关键俚语】backbone (noun)英：courage or strength中：勇气;力气
