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问题: 句子翻译,谢谢!

A road is a long stretch of ground that vehicles drive along. The surface of a road is hard.

A tooth is one of the hard white parts in your mouth.

解答:

路是指 交通工具可以在上面行使的一块地的延伸物.路的表面是坚硬的.

牙齿是指口腔中坚硬的白色部分