Doctors warn that stimulants can be addictive.

医生警告说兴奋剂可能会上瘾。

Some athletes use stimulants to enhance their performance.

一些运动员使用兴奋剂来提高他们的表现。

The use of stimulants is banned in many sports competitions.

在许多体育比赛中，使用兴奋剂是被禁止的。

Caffeine is one of the most common stimulants found in beverages.

咖啡因是饮料中最常见的兴奋剂之一。

Some people rely on stimulants to stay awake during long drives.

有些人依靠兴奋剂在长时间驾驶中保持清醒。

They also have heart stimulants.

他们也有心脏兴奋剂。

People have long chewed kola nuts as stimulants, because they contain caffeine.

长期以来，人们一直把可乐果当作兴奋剂，因为它们含有咖啡因。

Somebody did take stimulants, but not as bad as now.

有运动员使用兴奋剂，可不像现在这么糟糕。

I suspected there was some stimulants inside the bean curd.

这么兴奋,豆腐里面不会有兴奋剂吧?

But stimulants and hyperactivity seem like a weird match.

但兴奋剂和多动症似乎是一对奇怪的组合。