来自谭庆平的问题
【Somescientistsaretryingtofindoutthe原因forthehazeweather原因cause加不加s不懂别回】
Somescientistsaretryingtofindoutthe原因forthehazeweather
原因cause加不加s不懂别回
1回答
2020-04-22 21:56
【Somescientistsaretryingtofindoutthe原因forthehazeweather原因cause加不加s不懂别回】
Somescientistsaretryingtofindoutthe原因forthehazeweather
原因cause加不加s不懂别回
既可加s,也可不加s.加s表示多种原因,不加s表示一种原因.