Mesembryo
[医] 中胚期, 囊胚曲
🗣️ 情景例句
Aren't you going to the aerobics class this morning?
今天上午你不是去上有氧运动课吗？
All I have to do is learn English.
我所要做的就是学英语。
Dad, this is Li Lei. Li Lei, this is my father.
爸爸，这是李磊，李磊，这是我爸爸。