掉针

dropped in───(使)落进；(使)往里坍塌：；偶然(或顺便)走访(或访问)(on)；逐渐进入：；[口语](有选择地)加入；愿意(或决心)参加：；【戏剧】放下(吊幕)，吊装布景：

dropped by───顺便拜访

dropped off───减少；让……下车；睡着

dropped out───退出；退学；脱离

dropper-in───滴管输入

stopped in───顺便访问；中途作短暂访问

dropped waist───低腰，露腰

Soon after the match resumed, his opponent made a critical mistake: he dropped his guard. Instantly, the boy used his move to pin him.───比赛很快重新开端了，他的敌手犯了一个关键性的弊端，他疏忽防守。

A dropped pin would shatter the silence in bars during televised lottery draws.

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