问题描述：
1.it's time we got down to discussing the problem为什么用discussing不用discuss 谢谢~~
2,in an hour,we can travel to places___would have taken our ancestors days to reach
为什么要用which 顺求整句翻译
3.sound waves in the air in much the same way___water waves spread on the water.
为啥用as 不用that where in which之类的.顺求翻译.
谢谢~
2,in an hour,we can travel to places___would have taken our ancestors days to reach
为什么要用which 顺求整句翻译
3.sound waves in the air in much the same way___water waves spread on the water.
为啥用as 不用that where in which之类的.顺求翻译.
谢谢~
问题解答：
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