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一、和雨有关Save for a rainy day(未雨绸缪)It never rains but it pours.(不雨则已,一雨惊人)right as rain(身体健康,一切正常)二、和云有关on cloud nine(飘飘然如上九重天)
One, and the rain related right for rain (good health, everything is normal) Second, and the cloud on the cloud nine (floating in the air As above nine days)