Biformyl
[化] 乙二醛
🗣️ 情景例句
Customers flocked into the store.
顾客涌入那家商店。
Two blacks do not make a white.
两个乌黑不等于一个清白。
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。