Hierarchy system
[计] 体系, 分级系统
🧩 词语组成解析
🗣️ 情景例句
That's a great idea.
真是个好主意。
Do not speak of your happiness to one less fortunate than yourself.
不要向不如你幸运的人述说你的幸福。
I have some difficulty in pronouncing some of the words in English.
我有些英语单词发音不好。