Researchers learned that the lever of testosterone in a fetus goes up and down as the fetus develops.
Researchers learned that the lever of testosterone in a fetus goes up and down as the fetus develops.
研究人员已经查明，随着胎儿的生长，其睾丸激素的多少在不断变化。
Researchers learned that the lever of testosterone in a fetus goes up and down as the fetus develops.
研究人员已经查明，随着胎儿的生长，其睾丸激素的多少在不断变化。