Cyanopropionic acid
[建] 氰基丙酸
🧩 词语组成解析
🗣️ 情景例句
It's so convenient.
一切都很方便
When the police arrived, I was doing the housework.
当警察来的时候，我在做家务。
(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，