Olympic officials are trying to avoid a doping scandal.

奥林匹克官正努力避免兴奋剂丑闻。

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

体育最高法院表示俄罗斯用兴奋剂的证据不足。

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

26名意大利田径被指控逃避兴奋剂检测。

He was found guilty this week of systematic doping violations.

本周，阿尔贝托o萨拉查被裁决有罪，违反了兴奋剂使用的规定。

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

她正接受美国反兴奋剂机构USADA的调查。

It's really shocking that so many athletes today have taken dopes to be more energetic.

为了有更充沛的体力，那么多的用兴奋剂，真是令人震惊。

The most well-known performance enhancers are steroids, drugs that can make athletesbigger and stronger.

其中最著名的兴奋剂是类固醇，它可以让更大更强。

Millions of people take performance enhancing drugs such as caffeine and vitamins every day.

成千上万的人们每天用咖啡因，维他命之类的兴奋剂。

So he could figure out how to drug-test pigeons-and catch dopers in the act.

这样他就能了解如何对鸽子进行药物测试，并当场捉住用了兴奋剂的赛鸽。

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剂的顾客。

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剂的球进入名人堂。

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的兴奋剂了。

It was banned by the World Anti-Doping Agency only at the start of the year.

米屈肼今年年初才被世界反兴奋剂机构列入禁止药物类型。

But stimulants can play a positive role, too.

但兴奋剂也可以起到积极的作用。

If you want to learn more about ADHD, you can watch our episode about stimulants.

如果你想了解更多关于注意力缺陷多症的知识，可以收看我们制作的有关兴奋剂的节目。

This is perfect for photosynthesis and photosynthesis is dope, Hello phytoplankton productivity!

这非常适合光合作用，而光合作用又是兴奋剂，您好，浮游植物的生产力！

It follows an investigation into allegations of state-sponsored doping at the 2014 Sochi Olympic Games.

俄罗斯被指控2014年索契奥会上支持使用兴奋剂，此项禁令紧随该调查之后。

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

“冬奥会期间，有四种反兴奋剂设施。

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

而且尼古丁是一种兴奋剂，所以不要深夜摄入。

Brazil's new anti-doping lab will test 450 samples daily during the Games.

巴西新的反兴奋剂实验室将奥会期间每天测试450个样品。