n.[药]兴奋剂;刺激物;酒精饮料;
英文例句/中文翻译:
It is a well-known fact that caffeine is a stimulant.
咖啡因是兴奋剂,这是人所共知的事实。
When caffeine improves endurance, it does so by acting as a stimulant.
当咖啡因增加耐力时它象兴奋剂一样工作.
It is used in medicine for its stimulant quality.
由于它有兴奋剂的特性而被应用于医学.