n. 短语和例子 偶然来访的客人；偶然到访的地方；〔美俚〕吸毒者的巢穴。 2.adj. 短语和例子 插入式的。
Drop-In was a Canadian television series for youth broadcast on CBC Television from 28 September 1970 to 1974. Various hosts were featured throughout the course of the series to present a variety of topics.
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