umbilical cord
柯林斯词典
1. N-COUNT The umbilical cord is the tube that connects an unborn baby to its mother, through which it receives oxygen and food. 臍帶[usu sing]
返回 umbilical cord
1. N-COUNT The umbilical cord is the tube that connects an unborn baby to its mother, through which it receives oxygen and food. 臍帶[usu sing]