1. be right as rain: 非常健康；顺利

例句1：I took some medicine before I went to bed and the next morning I was right as rain.

睡觉前我吃了一些药，第二天早晨我又健健康康了。

例句2: You just need a good night's sleep, and then you'll be right as rain again. 你只需要好好睡一觉，就会完全恢复了。

2. come rain or shine: 风雨无阻，不管怎样

例句1: Don’t worry, come rain or shine I will make sure I’m there on Saturday. 别担心，无论怎样，我保证礼拜天会去。

例句2: I'm gonna love you, like nobody's loved you. Come rain or come shine. 我会独一无二的爱着你, 不管发生什么事。

3. It never rains but it pours. 祸不单行

例句1: First Sarah got fired, then she found out that her boyfriend was cheating on her with her best friend. It never rains but it pours.

首先Sarah丢了工作，然后发现了她男友出轨了，出轨对象是她闺蜜。祸不单行啊！

4. to rain on someone’s parade 扫某人的兴致，破坏某人的计划

例句1: Don’t rain on my parade.

别扫我的兴。

例句2： I’m sorry to rain on your parade but you’re not allowed to take photos in here.

很抱歉扫您的兴致，但是你不准在这里找照片。

5. rainy day (经济上)困难的日子

例句1： Save it for a rainy day

存钱以备不时之需

例句2: I know you want to buy an iMac with you bonus, but you should really save the money 4 a rainy day. 我知道你想用你的奖金买一个苹果电脑，但你应该把钱存起来以备不时之需。