Cocaine (benzoylmethyl-ecgonine) is an alkaloid stimulant drug that is derived fromErythroxyloncocashrub leaves. Its derivative, cocaine hydrochloride, can be snorted as a powder as well as ingested orally or administered intravenously. In adults, cocaine can cause convulsions, myocardial infarction, ...
【COCA】美国当代语料库常用高频词汇20200个(可直接复制) COCA数量说明:原来总共是20200个,由于有大量重复的单词,所以把2565个重复的单词清理掉了!最终清理重复后的数量是17635个,每个词语之间以空格分开,详见如下: the beandof a in to have itIthatforyou he with ondosay this they at but we his from not...