It also helps to bathe only in lukewarm water.

在温水里洗一下也很有效。

youdao

We think of lukewarm water, hope to get in it.

我们惦记着温水，希望快进去呢。

youdao

Every night you should rinse your face with lukewarm water.

明天晚上你应该用温水洗脸。

youdao

And they always had latrines and baths, and you'd have the cold room where you'd have cold water, you'd have the tepid room where you'd have kind of lukewarm water, and you'd have the hot room where you'd have hot water.

通常都会有公共厕所和浴室，有提供冷水的冷水房，提供温水的温水间，还有提供热水的热水间。

耶鲁公开课 - 新约课程节选

She plunged a washcloth into the bowl of now lukewarm water and gently cleaned him off.

NEWYORKER: The Visitor

The next morning, my brother, a friend and I rose early to dine on crumbling granola bars and lukewarm water.

NPR: Forget The Granola: Camp Cooking Goes Gourmet