Noncommutative
非交换的, 非可换的
🗣️ 情景例句
We need to bring a flashlight.
我们需要带一个手电筒。
Rain before seven; fine before eleven.
雨过天晴。
It must have been about two in the morning when I returned home.
我回到家时，肯定已是凌晨两点左右了。