rain的形容词形式是？

　　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。

　　The present ruler, Prince Rainier III, succeeded to the throne on 9 May 1949.

　　现任元首，兰尼埃三世亲王于1949年5月9日继位。

　　Strange as it may seem, she actually prefers rainy days.

　　听上去也许很奇怪，她其实喜欢下雨天。