rainy是形容词，表示多雨的，下雨的，一般放在系动词be后，或名词前作定语。可以用在形容气候多雨，雨季等。raining是现在分词，一般用于进行时，表示正在下雨。可以在下雨时使用。
rainy的例句I'll put the rest in the bank for a rainy day.
我要把余款存入银行以备不时之需。
Rainy weather brings blessed relief to hay fever victims.
雨天会给枯草热患者带来欣喜，减轻他们的痛苦。
They have a little nest egg tucked away somewhere for a rainy day.
他们把一小笔钱存在了什么地方，以备不时之需。
The rainy season in the Andes normally starts in December.
安第斯山区的雨季通常在12月份来临。
They walked along the promenade on a rainy night
他们在一个雨夜沿着海滨道散步。
raining的例句It's going to rain today by the look of it.
看样子今天要下雨了。
Go outside and see if it's raining.
去外边看看是否下雨了。
There will be heavy rain with flooding in some areas.
将有大雨，有些地方会泛滥成灾。
The worst part was having to wait three hours in the rain.
最糟糕的是必须在雨中等待三个小时。
Wear clothes that provide adequate protection against the wind and rain.
穿上足以防风雨的衣服。
