Orthonormal
[计] 规范正交的
🗣️ 情景例句
Has a poor personal appearance.
衣着形象不佳。
Once bitten, twice shy.
一次被咬，下次胆小。
I crossed the street to avoid meeting him, but he saw me and came running towards me.
我穿过马路以便避开他，但他看到我并朝我跑过来。