Phaeophyll
叶褐素
🗣️ 情景例句
She's still giving the toughest English history exams
她仍用最艰深的英国史试题考学生
Labour is often the father of pleasure.
勤劳常为快乐之源。
We regard them as unnecessary creatures that do more harm than good.
我们把昆虫当作害多益少的无用东西。