Triality
三隅对称性
🗣️ 情景例句
Susan called early this morning. Susan
一大早打电话来。
I was 10 minutes late.
我迟到了五分钟。
And anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
凡是稍稍想过大海海底的人大概都会认为海底是平坦的。