Cocaine

[kə(ʊ)'keɪn] or [ko'ken]

解释:

(noun.) a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive.

希尔达整理--From WordNet

解释:

(n.) A powerful alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain.

手打:玛吉