What do you wear to go swimming?

你穿什么去游泳？

youdao

So can never wear Leather Watchband watch go swimming (or long time exposure to water, things) long-term sweat retting, can make the watch strap moldy taste.

所以绝对不能够戴着皮质表带的手表去游泳(或做长时间接触水的事情)，长期的汗水浸沤，还能使表带发霉变味。

youdao

What do you wear to go swimming? — I wear a swimsuit.

你游泳的时候穿什么？ - - - - - - - -我穿游泳衣。

youdao

It, too, wanted a timepiece that its clients could wear while sky-diving, swimming, playing golf or tennis, hang-gliding or anything else they might care to pursue, without having to take it off for dinner.

WSJ: This Sporting Life