...if we did not have air ,there wiuld be no sound because sound travels through air(对划线部分提问
...if we did not have air ,there wiuld be no sound because sound travels through air(对划线部分提问
because sound travels through air提问
wiuld 是would打错了
because sound travels through air提问
wiuld 是would打错了
英语人气：736 ℃时间：2020-03-04 04:41:27
优质解答
why there would be no sound in the world if there is no air
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