单词：drop-in
drop-in的用法和样例：
例句
- Some of the people were drop-ins who had no real interest in the case.有些人是顺便来听听的，对这个案子并无真正的兴趣。
词汇搭配
- a drop in the ocean沧海一粟
- drop in顺便走访(某人)...
- drop something in someone's lap把责任推诿给某人,把...
- a drop in the bucket沧海一粟
- in drop内曲下坠球
- have a drop in one's eye有点醉意
- drop in pressure压力降低
- drop in delivery降低泵的排量...
- drop in price跌价
- drop in pressure head压强水头差降...
- drop in leaf活动翻板
- drop in temperature降温
- drop in level高程差
- drop in on非正式访问
- drop in at光临
- bit drop-in信息混入
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