Diphenylethlene
二苯基乙烯
🗣️ 情景例句
My favorite hobby is coin collecting.
我最大的爱好是收集硬币。
I don't know anything about that.
关于那个我什么都不知道。
John is a Canadian. He lives in a tall building in the city of Toronto.
约翰是加拿大人。他住在多伦多市的一幢高楼里。