Quadratic selection
[计] 二次选择
🧩 词语组成解析
a. 二次的\\nn. 二次方程式
🗣️ 情景例句
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很好，请填写这张表格。
Kindness is the golden chain by which society is bound together.
善良是连结社会的金链。
How long has this factory been open?
这家工厂建成有多久了？