Noncommutative
非交换的, 非可换的
🗣️ 情景例句
and I think he believes
而我认为他相信
Never say die! Up man, and try.
不要气馁，朋友，振作起来，干！
From those humble beginnings, we have seen the development of the user-friendly home computers and multimedia machines which are in common use today.
从那些简陋的初级阶段，我们看到了现在都已普及的、使用简便的家用电脑和多媒体的微机的发展。