速凝水泥/This highway will beopen to traffic in a day ortwo because it is paved withaccelerated cement.這條公路一兩天就能通車(chē),因?yàn)樗怯盟倌噤伒摹?.....(本文共 123 字) [閱讀本文] >>
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 速凝水泥/This highway will beopen to traffic in a day ortwo because it is paved withaccelerated cement.這條公路一兩天就能通車(chē),因?yàn)樗怯盟倌噤伒摹?.....(本文共 123 字) [閱讀本文] >>