Tetrads
四色相(等间隔)配色
🗣️ 情景例句
Are all these goods made in your factory?
所有这些货物都是贵厂生产的吗？
When I saw Mr. Jones,he was talking with John Smith.
当我看见琼斯先生时，他与约翰·史密斯正在谈话。
A planet would have to be a very long way from it to be capable of supporting life.
那么一颗行星为了维持生命就要离开的它的恒星非常远。