placental membrane

单词placental membrane

基本解释

un.: 胎盘膜

英汉解释

• 胎盘膜

例句

• Each puppy emerges in its own placental membrane, or sac, which must be removed before the puppy can breathe.

  胎衣包裹住犬仔，在犬仔呼吸之前，就要将胎衣去掉。