Sapromixite
藻煤
🗣️ 情景例句
and he's very unhappy about not working.
他对没有工作感到怏怏不乐。
No, I'm a single son.
没有，我是独生子。
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。