Enteroderm
消化道内胚层
🗣️ 情景例句
You mean you never do anything yourself?
你意思是你自己不做任何事？
He was so startled that he yelled.
他惊吓得高声喊叫。
Mrs.Rumbold was a large, unsmiling lady in a tight black dress.
兰伯尔德夫人是一位身材高大、表情严肃的女人，穿一件紧身的黑衣服。