It's going to rain.表示“(有某种迹象)要下雨了.”; 而 It will rain.则不能表示有某种迹象,一般用于表示“(收音机或电视天气预报)将要下雨.”
如:Look at the black clouds.It's going to rain.
The radio says it will rain tomorrow.
It's going to rain.表示“(有某种迹象)要下雨了.”; 而 It will rain.则不能表示有某种迹象,一般用于表示“(收音机或电视天气预报)将要下雨.”
如:Look at the black clouds.It's going to rain.
The radio says it will rain tomorrow.