Perioidic system
[机] 周期系
🧩 词语组成解析
🗣️ 情景例句
You've got the wedding-day jitters!
已经得了婚礼紧张症了！
It is harder to marry a daughter well than to bring her up well.
养女容易嫁女难。
What do you mean by special?
怎么特别呢。