Piperonal-acetophenone
[化] 亚胡椒基乙酰苯; 胡椒醛缩乙酰苯
🧩 词语组成解析
n. [化]胡椒醛, 洋茉莉醛( 亦作piperonyl aldehyde)
n. [化]乙酰苯,苯乙酮,苯基甲基甲酮
🗣️ 情景例句
Staff only.
员工专用。
If the sky fll (or falls), we shall catch larks.
异想天开
Which language is spoken by the largest number of people in the world?
世界上哪种语言说的人最多？