Gene doping is concealable, so that it is difficult to detection.

由于基因兴奋剂具有较高的隐蔽性，使检测成为难题。

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Gene doping is concealable, so that it is difficult to detection.

由于基因兴奋剂具有较高的隐蔽性，使检测成为难题。

youdao