as right as rain 非常健康；完全令人满意；一帆风顺；完全恢复；完全康复

【例句】
His teeth went and hair got thin, but six months back in the hometown he was as right as rain.
他牙掉发稀，然而回到故乡半年又完全恢复了正常。

My grandma is 80 years old, and she is as right as rain.
我奶奶已经80岁了，她的身体仍然非常健康。