Tetrads
四色相(等间隔)配色
🗣️ 情景例句
The apartment is spacious, bright and clean.
这个公寓宽敞、明亮、干净。
I meet the boy whose aunt is an accountant.
我遇到那个男孩的姑妈是会计。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，