和雨有关的
谚语
：save for a rainy day
未雨绸缪
例句：we save money for a rainy day。
it n*r rains but it pours
不雨则以，一雨惊人
例句：i just got sacked and my wife left me！so it n*r rains but it pours！
right as rain
身体健康，一切正常
例句：i was sick，but now i feel as right as rain。
和云有关的
谚语
：on cloud nine
*然如上九重天
例句：she passed the auditon and now she is on cloud nine。
head in the cloud
不切实际，好高骛远
例句：you can't always have your head in the cloud，you need to be down-to-earth。
和彩虹有关的
谚语
：chase rainbows
做白日梦
例句：chsing rainbows won't get you anywhere。
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