柯林斯词典fetus /ˈfiːtəs/ (fetuses) 1. N-COUNT A fetus is an animal or human being in its later stages of development before it is born. 胎儿 Pregnant women who are heavy drinkers risk damaging the unborn fetus. 酗酒的孕妇冒有伤害胎儿的危险。 返回 fetus剑桥词典a young human being or animal before birth , after the organs have started to develop 胎儿，胎 返回 fetus