Para-hydroxybenzoic acid
[建] 对一羟基苯甲酸
🧩 词语组成解析
[经] 帕拉
🗣️ 情景例句
Mary, this is Stone's brother Jim.
玛丽，这是世通的兄弟吉姆。
By doing we learn.
经一事，长一智。
It suddenly dawned on me that this express was not roaring down the line at ninety miles an hour, but barely chugging along at thirty.
我突然感到这趟快车并没以时速90英里的速度呼啸前进，而是卟哧卟哧地向前爬行，时速仅30英里。