Triadaxis
三次对称轴
🗣️ 情景例句
Nowadays many young people cohabit together without legal permission.
如今很多年轻人未获得法定允许就一起同居了。
We pitied the family in their sudden unhappiness.
那家人遭受突然的不幸，我们深感同情。
We ate our sandwiches and a bar of chocolate each and began to feel better.
我们俩都吃了三明治和一块巧克力才感到舒服些了。