Noncommutability
[化] 不可对易性
🗣️ 情景例句
I have always worn a clip-on bow tie.
我都是用夹上去的领结。
And go out into the open to watch all kinds of fireworks glittering everywhere in the dark sky.
到外面去看夜空中绚烂多彩的焰火。
Happy birthday! said Polly, and gave Ann her present---a red feather.
“生日快乐！”波利说，然后给安送礼物--一根红羽毛。