P-nitroacetophenone
[化] 对硝基苯乙酮
🗣️ 情景例句
That'll be fifty-five dollars and twenty cents.
一共55元2角。
I read 10 lettres.
我读了十封信。
The clouds had come down so suddenly we had no warning.
乌云突然出现，我们丝毫没有觉察。