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地理老师告诉我们光比声音传播的速度更快 英文怎么说 光比声音传播的快用英语怎么说
地理老师告诉我们光比声音传播的速度更快 英文怎么说 Geography teacher told us that light goes faster than sound.或Geography teacher told us that th...
地理老师告诉我们光比声音传播的速度更快 英文怎么说 Geography teacher told us that light goes faster than sound.或Geography teacher told us that th...