Anisindone
甲氧苯二酮
🗣️ 情景例句
I can't figure out why he quit his job.
我不能理解他为什么要辞职。
Thank you for directions.
感谢你为我指路。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，