Tetrads
四色相(等间隔)配色
🗣️ 情景例句
So now I'm taking a flight on Monday instead.
所以我现在要改搭星期一的班机走。
I'm always confused with s and th.
我常把s和th搞混。
He invited me to dinner yesterday.
他昨天请我吃晚饭了。