Naphthane
十氢化萘, 萘烷
🗣️ 情景例句
My instructor thought that the beginner's class was too easy for me.
老师认为初级课程对我来说太容易了。
Do you speak English?
你说英语吗？
Shall I call you James or Jim?
我是叫你詹姆斯呢还是叫你吉姆？