Placentate
a. 胎盤的\\nn. 有胎盤哺乳動物
??? 情景例句
What are you trying to say?
你想說什么？
I hope the weather there is cold enough.
我希望那兒天氣夠冷。
What will be the population of the world in the year 2000?
2000年世界人口將是多少？