Squariance
(离差)平方和
🗣️ 情景例句
I'm sorry, I really don't know.
对不起，我真的不知道。
Whose responsibility are the shipment charges?
运费由谁来负责呢？
They spent a full and very enjoyable morning together, and Fred discovered that he had a gift for making a visit interesting and lively.
他们一起度过了一个充实而又非常愉快的早上，弗雷德发现自己具有导游的才能，能使参观活动变得趣味盎然。