英语词组go/fly off at a tangent是什么意思，短语翻译、用法及例句-英语词组固定搭配大全

词组	go/fly off at a tangent
释义	●go/fly off at a ˈtangent (BrE) (NAmE go off on a ˈtangent) change suddenly from talking or thinking about one thing to talking or thinking about another 突然转移话题；突然改变思路◆One moment the professor is working hard on a problem in physics, the next he’s gone off at a tangent and he’s talking about bees.前一分钟教授还在努力解答物理题，下一分钟他就突然开始讲起蜜蜂来。 NOTE A tangent is a straight line that touches the outside of a curve but does not cross it. * tangent （切线）是与曲线外缘相接但不穿过曲线的直线。
随便看	castles in the air cast light on sth cast lots cast lots for sth do sth cast lots for to do sth cast new light on sth cast pearls before swine cast/run an eye/your eyes over sth cast/shed/throw (new) light on sth cast/spread your net wide cast your mind back to sth cast your net wide cat cat and mouse catbird catch catch-22 catch a hold of sb catch a hold of sth catch-as-catch-can catches catch/get/grab/take (a) hold of sb/sth catch/get sb’s/the drift catch/get some Z’s catch hell

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