Diphenylethlene
二苯基乙烯
🗣️ 情景例句
We're organizing an informal party, and I'd like you to come.
我们计划组织一个非正式聚会，我想请你参加。
Will the flight be delayed?
这班机会延误吗？
The big clock refused to welcome the New Year.
那座大钟不愿意迎接新年。