a-nor-steroid a环失碳甾体
-nor-steroid 去甲基甾体化合物
19-nor-steroid 去甲基甾体化合物
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以上来源于: WordNet
And neither MLB nor the Hall has taken a hard stance on how to evaluate steroid-era players.
WSJ: Roger Clemens, Barry Bonds Left Out of Hall of Fame on Baseball's Big Day of Deep Weirdness
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