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1·Phelps has never tested positive for a banned substance.

菲尔普斯从未在药检中检出阳性。

2·But maybe Watson had no intention to win by taking banned substance.

也许沃森并不是有意要想通过服违禁物来赢得比赛。

3·VX is an internationally banned substance that can kill within minutes.

VX是一种国际上禁止的有毒物质，可以在几分钟内置人于死地。

4·Spains Alberto Contador, who won the Tour de France this year for a third time, has failed the test for a banned substance.

三届环法自行车赛冠军得主、西班牙车手阿尔贝托康塔德在今年环法期间的药检结果成阳性。

5·Milan's proposed January bid for Vincenzo Iaquinta has hit the rocks after Marco Borriello tested positive for a banned substance.

在博列洛兴奋剂检测呈阳性后，关于米兰一月准备收购亚昆塔的计划出现了意外的打击。