Integral domain
[数]整环
🧩 词语组成解析
🗣️ 情景例句
It's almost ten o'clock.
现在已经快十点钟了。
This material feel hand, How does that materoal feel?
这种布料感觉起来很硬，那块料子如何呢？
Boxing matches were very popular in England two hundred years ago.
两百年前，拳击比赛在英国非常盛行。