Enteroderm
消化道内胚层
🗣️ 情景例句
He's the publisher of the Carlson Publishing Company.
他是Carlson出版公司的老板 。
Who answers suddenly knows little.
答得迅速，懂得不多。
For a beginner, you're pretty good.
做为一个初学者，你已经做得很好了。