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求大神讲解一下of up to的用法,之前只接触过up to的用法。
The Anasazi settlements at Chaco Canyon were built on a spectacular scale, with more than 75 carefully engineered structures, of up to 600 rooms each, were connected by a complex regional system of roads.
- Ascale, with more than 75 carefully engineered structures, of up to 600 rooms each, were 分析该选项
- Bscale, with more than 75 carefully engineered structures, of up to 600 rooms each, 分析该选项
- Cscale of more than 75 carefully engineered structures of up to 600 rooms, each that had been 分析该选项
- Dscale of more than 75 carefully engineered structures of up to 600 rooms and with each 分析该选项
- Escale of more than 75 carefully engineered structures of up to 600 rooms each had been
求问OF UP TO的用法
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