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1.The drug dealer was caught selling cocaine to undercover officers.
这名毒品贩子被抓获，向便衣警察出售可卡因。
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2. The police found a small amount of cocaine in his bag.
警方在他的包里发现了一小撮可卡因。
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3.Cocaine addiction is a serious problem that requires treatment and support.
可卡因成瘾是一个严重的问题，需要治疗和支持。