Comparing the ratio of testosterone to epitestosterone can then indicate whether testosterone or a precursor has been taken.

因此测定睾酮与表睾酮的比例，能够反映出(运动员)是否服用了睾酮或者它的前体药物。

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The test usually employed for testosterone abuse relies on measuring the ratio of two chemicals found in the urine: testosterone glucuronide (TG) and epitestosterone glucuronide (EG).

针对睾酮使用的检测通常是基于测量尿样中所发现的两种化学成分的比例，即睾酮葡糖苷酸（TG）和表睾酮葡糖苷酸（EG）的比例。

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The 30-year-old American offered possible explanations as to why a test result showed his testosterone-to-epitestosterone ratio was out of whack.

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