Olympic officials are trying to avoid a doping scandal.

奥林匹克官员正在免兴奋丑闻。

One class of drugs is called uppers.

一类毒品被称为兴奋。

But stimulants can play a positive role, too.

但兴奋也可以起到积极作用。

And finally 11. Feeling withdrawal symptoms from stimulants.

11. 对兴奋产生戒断症状。

Fernando Moreira often encountered people who stopped by for performance-enhancing drugs...for their racing pigeons.

经常遇到来药店为赛鸽买兴奋顾客。

She was being investigated by the United States Anti-Doping Agency, USADA.

正接受美国反兴奋机构USADA调查。

He opposed admitting players to the Hall of Fame if they had used performance-enhancing drugs.

他反对允许使用兴奋球员进入名人堂。

During the winter Olympic games, there are four kinds of anti-doping facilities.

“冬奥会期间，有四种反兴奋设施。

And nicotine is a stimulant, so avoid them too late in the day.

而且尼古丁是一种兴奋，所以不要深夜摄入。

We have a 100% policy against doping.

我们有一个100%反对使用兴奋策。

Russia was initially given a four-year ban by the World Anti-Doping Agency.

世界反兴奋机构最初对俄罗斯禁赛四年。

Twenty six Italian track and field athletes have been accused of evading drug tests.

26名意大利田径运动员被指控逃兴奋检测。

10. Becoming tolerant to the stimulants.

10. 对兴奋产生耐受。

The IOC will react with zero tolerance.

国际奥委会对兴奋采取零容忍态度。

Sports top court says there was insufficient evidence to prove doping.

体育最高法院表示俄罗斯运动员服用兴奋证据不足。

So we don't know if he apologized for state-sponsored doping or the fact that Russia got caught.

我们不知道他是为国家支持兴奋体系道歉，还是为俄罗斯卷入兴奋丑闻道歉。

Now, caffeine could be said to be the last legal performance enhancing drug.

咖啡因可以说是最后一种合法兴奋了。

The World Anti-Doping Agency banned use of meldonium at the beginning of 2016.

2016年初，世界反兴奋组织开始禁用米屈肼。

Using stimulants even if its worsening a physical or psychological problem.

即便造成生理或心理问题恶化，依然使用兴奋。

She tested positive for a performance-enhancing drug a few months back.

几个月以前，兴奋检测结果呈阳性。