stimulant
UK/'stɪmjʊl(ə)nt/US/'stimjulәnt/
TOEFLGREB2
释义
n.
A substance that raises physiological or nervous activity, such as caffeine.
兴奋剂,提神物
n.
Anything that rouses activity or enthusiasm.
促进因素,激励物
词根拆分
词根派生stimul-(戳赶)+ -ant(做这件事的东西)= 起「戳」作用的东西——把身体或头脑戳得更活跃的物质。最常指加快神经系统的物质(咖啡因、尼古丁)。
词根 stinct 还连着 42 个词常用搭配
- 1.mild stimulant温和的兴奋剂
- 2.powerful stimulant强力兴奋剂
- 3.natural stimulant天然兴奋物质
- 4.stimulant drug兴奋类药物
- 5.use stimulants使用兴奋剂
例句
- 1.
Coffee is the most widely used stimulant in the world.
咖啡是世界上使用最广泛的兴奋剂。
- 2.
Athletes are banned from taking certain stimulants before competitions.
运动员在比赛前禁止服用某些兴奋剂。