我宁可让他一个人去烦恼。用英语怎么说？

我宁可让他一个人去烦恼。

I'd rather let him stew...

rather

adv. 稍微，有点，相当，颇，宁愿，相反地；int. 当然啦，怎么不；

例句
These wines may taste rather hard and somewhat acid.
这些酒可能喝着比较冲并且有股酸味。

let

允许，任由，让，随，假设，出租；

例句
'And now, without further ado, let me introduce our benefactor.'
“下面，闲话少说，让我来介绍一下我们的赞助人。”

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

stew

vt.& vi. 炖，煨，闷热，担忧；n. 炖煮的菜肴，烦恼，焦虑；

例句
An aromatic beef stew waited on the stove.
炉子上放着香味四溢的炖牛肉。