Abob
[化] 吗啉胍; 吗啉双胍
🗣️ 情景例句
Congratulations!
恭喜你
The industrial area is centered largely in the north.
大部分工业区域集中在北方。
But I'm worried about his Chinese.He may fall behind the other students when he comes back.
但我担心他的中文。等他回来后，他可能会落到其他同学后面。