I was caught in the rain yesterday.

昨天我赶上雨了。

They got caught in the rain just now.

他们刚才遭到了雨淋。

He was caught in the rain and got wet.

他碰上大雨，被淋湿了。

Being caught in the rain, I got a cold.

由于被雨淋了，我感冒了。

I got caught in the rain. I was soaked.

我刚巧碰上下雨，浑身都湿透了。