Diphenylethylene
1, 2-二苯乙烯
🗣️ 情景例句
Would you work with me on it?
愿意和我一起来做吗？
What's your nationality?Are you a Chinese?
你的国籍是什么？你是中国人?
I don't understand! What do you mean? asked Mrs Brown.
“我不懂！你说的是什么意思？”布朗夫人问道。