Triality
三隅对称性
🗣️ 情景例句
OK, let's take a look.
好了， 让我们来看一看。
Reading and listening to music is the ultimate in relaxation.
一面读书，一面听音乐是最佳的休息。
I got up early and bought thirty-seven cards.
我早早起了床，买来了37张明信片。