Piperonylic acid
[化] 胡椒基酸; 3,4-亚甲二氧基苯甲酸
🧩 词语组成解析
🗣️ 情景例句
He's asleep.
他睡着了。
Kindness is the golden chain by which society is bound together.
善良是连结社会的金链。
Spiders are busy for at least half the year in killing insects.
蜘蛛至少有半年在忙于吃昆虫。