Trophectoderm
滋养外胚层
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
The wolf has a winning game when the shepherds quarrel.
鹬蚌相争，渔翁得利。
Then he spoke slowly, but I could not understand him.
于是他说得慢了，可我还是听不懂。