She dressed the children in their best clothes.

她给孩子们穿上了最漂亮的衣服。

《牛津词典》

Some people drive around town in their best clothes and make sure that everyone sees them.

有些人穿着他们最好的衣服在城里开车，确保每个人都能看到他们。

youdao

This is an exciting new area of the centre and is pretty scary and of course you do get a bit wet, so make sure you're not wearing your best clothes!

这个新区域很刺激，而且很可怕，当然了，你也会弄湿自己，所以确保你不是穿了最好的衣服来玩这个项目！

youdao

You might say when I wear my best clothes, I am dressed to the nines or dressed to the teeth.

VOA: special.2010.05.09

You do not have to dress to the nines, or wear your best clothes, for this kind of work.

VOA: special.2009.07.26

My best clothes are not modern or fashionable.

VOA: special.2010.05.09

In general, most people attending Royal Ascot take the opportunity to put on their best clothes.

BBC: Kitted out for Royal Ascot

We were this band of super-young people, in all our best clothes.

NEWYORKER: Sole Mate

He was wearing his yellow shirt, along with a rust-colored jacket, a striped tie of rich burgundy silk, and gray woollen slacks: his best clothes.

NEWYORKER: The Reptile Garden