Pterosterone
蝶甾烯酮, 六羟基胆甾烯酮
🗣️ 情景例句
What I really want is the chance to learn some advanced methods of management.
我真正希望的是有机会学到一些先进的管理方法。
Think today and speak tomorrow.
三思而后行。
An important film director saw Chaplin acting a very funny part in a play.
一位颇有影响的电影导演看了卓别林在一个剧中扮演的一个非常滑稽的角色。