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關(guān)注：1
2013-05-23 12:21
求翻譯：Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,OOOkm. But sound travels only 344m. You can get someidea of this difference by watching the start of a race. If you stand some distance away fromthe starter, you can see smoke comes from his gu是什么意思？ 待解決
 懸賞分：1
- 離問題結(jié)束還有
Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,OOOkm. But sound travels only 344m. You can get someidea of this difference by watching the start of a race. If you stand some distance away fromthe starter, you can see smoke comes from his gu
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