The roads are flooded after a period of exceptionally torrential rain.

　　很多地方的道路都被淹了，通不了车。

　　As soon as I got outside, it started pouring.

　　我刚一出门就开始下大雨。

　　It was pouring with rain and I had forgotten my umbrella.

　　大雨瓢泼，但是我却忘记带伞了。

　　It's really coming down out there!

　　外面雨下得好大啊。

　　毛毛雨：

　　I like the rain, especially when it's drizzling.

　　我喜欢下雨，尤其是毛毛雨。

　　It's just spitting.

　　毛毛雨而已。

　　阵雨：

　　I had thought it was just a shower.

　　我以为这雨只下一阵的。

　　We got caught in a downpour.

　　我们被一场阵雨困住了。

　　I got soaked walking home just now.

　　刚刚走回家的时候淋得湿透的。

　　I got soaking wet.

　　我淋得湿透了。

　　It's been raining on and off all day.

　　这雨断断续续下了一天。