The sperm sample is produced by masturbation.
精子样本通过手淫获取。
Sheldon : Well , today we tried masturbating for money .
今天我们刚试过靠赚钱。
Results : Our survey shows that masturbating is very common with warship crews , they can easily accept it , have fun and relax from it .
结果：独自性行为在航期间很普遍，说明舰员容易接受独自性行为的事实，而舰员的择偶更注重个人良好素质与内在条件。
masturbatingmasturbatingmasturbating