①A duo is two musicians, singers, or other performers who perform together as a pair.【n.一对表演者;表演搭档】
②You can refer to two people together as a duo, especially when they have something in common.【v.(尤指拥有共同特征的)一对,一双】
①The violinist walked on the stage and the duo became a trio.
②Well, if it isn't the dynamic duo .
③In either case, ignore the duo .
《经济学人》一篇关于地缘政治与芯片之争的文章 Betting all the chips 也出现了这个表达：
To stop being friendly with someone because you have had a disagreement with them.
①Somebody talked about a family member they had a falling out with.
②And Bree's falling out with her friends Bree led to some dangerous behavior.
Matt Haig的新书 The Midnight Library 也出现了这个表达：
When people bicker, they argue or quarrel about unimportant things. 【v.斗嘴；争吵；发生口角】
The two women bickered constantly.
When people quibble over a small matter, they argue about it even though it is not important. 【 v.(为琐事)争辩，争吵 】**
Council members spent the day quibbling over the final wording of the resolution.
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