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關注：1
2013-05-23 12:21
求翻譯：According to structural forms,bridges can be classified into beam bridge,rigid bridge arch bridge,cable-stayed bridge, and suspension bridges是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
According to structural forms,bridges can be classified into beam bridge,rigid bridge arch bridge,cable-stayed bridge, and suspension bridges
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