Mice that lack the receptor do not become dependent no matter how much cocaine they are given. 缺少這個受體的小鼠，無論服用過多少古柯鹼，都不會上癮。
If the GCMS fingerprint of a sample matches that of heroin or cocaine, it is nearly impossible for even the best defense lawyer to challenge the result successfully. 如果樣品透過氣相層析質譜分析儀呈現出來的特徵，符合海洛因或古柯鹼，那麽就算是請到王牌辯護律師，也不可能成功打敗這樣的結果。
The drug addict was snorting cocaine every night. 這個癮君子每天晚上都用鼻吸食可卡因。
Stephen has just confessed to taking cocaine. 史蒂芬剛剛坦白說自己吸食過可卡因。
