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6个魔方公式还原三阶魔方,超级简单易学 - 知乎 一、魔方公式 魔方一共六个面: 左 == left | 右 == right 上 == up | 下 == down 前 == front | 后 == back 旋转方向有两个: 顺时针 == X | 逆时针 == X ' 于是生成了 6*2=12(个)魔方公式 如图所示:
year-old和years old的区别是什么? - 知乎 例如: My six-year-old son is starting school next week This is a 200-year-old house A 45-year-old woman won the race 英文中类似这种结构的词用来表示形容词的还有很多,比如: Well-known Long-distance Good-looking 1 个回答被折叠 (为什么? )