Quadrol
乙二胺
🗣️ 情景例句
Oh, Robbie will be disappointed.
啊 ，Robbie会很失望。
He is too lazy to move but luckily he has strong toes.
他虽然懒惰得不肯动，但是幸而有强壮的脚趾。
At the age of twelve years, the human body is at its most vigorous.
人体在12岁时是生命力最旺盛的时期。