drop-in单词基本解析：

adj.可随时造访的; 无须预约的 ; 免费提供信息和帮助的

n.不速之客；偶尔的来访；旁听生；吸毒者的巢穴

drop-in变化用词：

drop-in英英释义：

动词 drop-in:

visit informally and spontaneously

同义词：drop by, drop in, come by

drop in[ 'drɔpin ]v.visit informally and spontaneously

同义词：drop bydrop income by

drop-in中文词源：

drop-in用法和例句：

drop-in

用作名词(n.)

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。

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