Perinaphthenone
[化] 周萘酮; 萘嵌苯酮
🗣️ 情景例句
As far as possible, the teacher should expose the student to real life situations.
教师应该尽可能使学生接触现实生活的情景。
Careful!
小心！
What did he do?
他是干什么的？