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關注：1
2013-05-23 12:21
求翻譯：Sound can travel through a lot of matters, such as water, air and wood. Do you know where it travels the fastest?是什么意思？ 待解決
 懸賞分：1
- 離問題結(jié)束還有
Sound can travel through a lot of matters, such as water, air and wood. Do you know where it travels the fastest?
問題補充： |
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