1.it's time we got down to discussing the problem为什么用discussing不用discuss 谢谢~~
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 toreach
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~
答
1.get down to开始认真考虑；着手处理,to是介词~~
2.which would have taken our ancestors days toreach是定语从句,which在从句中作主语,指代places,其实也可以用that,不过一般习惯用which,意思：我们只需花一个小时就可以到达那些地方旅游,而我们的祖先以前需要花几天时间才能到达.
3.same as固定结构,比如be the same as, as same as, the same... as等等.意思：空气中声波的传播方式跟水声波在水里的传播方式非常相似.