Orthonormalization
规化正交集
🗣️ 情景例句
In town. At the hardware store.
在镇上。在五金行里。
Why didn't you like doing the laundry so much?
为什么你那么不喜欢洗衣服？
Most of my friends live in the city, yet they always go into raptures at the mere mention of the country.
我的许多朋友都住在城市，但他们只要一提起乡村，马上就会变得欣喜若狂。