Olympic officials are trying to avoid a doping scandal.

奥林匹克官员正在努避免兴奋剂丑闻。

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

体育最高法院表示运动员服用兴奋剂的证据不足。

The decision followed a long investigation into the alleged doping of Russian athletes.

经过国际奥委会长期对运动员使用兴奋期的调查，他们才做出这样的决定。

The trainer himself admitted doping four others.

驯马师承认还给另外4匹马也服过药。

The World Anti-Doping Agency works to keep certain drugs out of sports.

世界反兴奋剂机构一向致于将某些药品拒之体育门外。

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。

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

米屈肼今初才被世界反兴奋剂机构列入禁止药物类型。

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

被指控在2014索契奥运会上支持使用兴奋剂，此项禁令紧随该调查之后。

Ling Lin is with the doping control department of the Beijing 2022 organizing committee.

凌琳是2022冬奥组委反兴奋剂部门负责人。

Russia was suspended last November after a report accused it of state sponsor doping.

去11，田径被指发生自上而下服药行为，并因此而遭到禁赛处罚。

Russian officials have denied any state involvement in the doping of athletes.

官员否认任何关于国家参与运动员兴奋剂事件的指控。

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

2016初，世界反兴奋剂组织开始禁用米屈肼。

Silicon doping involves incorporating impurities into a crystal that mess up its electron balance.

所谓硅的掺杂就是将能破坏电荷平衡的杂质混入晶体。

You'll understand what chemists mean when they talk about " doping."

而当化学家谈论“掺杂质”的时候，你也会明白他们在讲什么。

The doping crackdown has also barred Russia from competing in next month's Olympic Games.

因兴奋剂丑闻，也禁止参加下个举行的冬奥会。

We have a 100% policy against doping.

我们有一个100%反对使用兴奋剂的政策。

What more can you tell us about how the Anti-Doping Agency came to this decision?

请你详细介绍一下世界反兴奋剂机构是如何做出这一决定的？

And that's a critical component in this fight against doping.

而检举是反兴奋剂行动中的重要组成部分。

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

世界反兴奋剂机构最初对禁赛四。

We begin, though with the biggest sports doping story since Lance Armstrong.

我们从始于兰·阿姆特朗的最大体育兴奋剂丑闻开始今天的节目。