Is your tap water fit to drink?

你们的自来水可以喝吗？

youdao

The water is not fit to drink.

这水不适宜饮用。

《新英汉大辞典》

The water in our streams is not fit to drink and we can no longer eat the fish in our rivers or the animals in our forests.

我们河流的水不适合饮用，我们不再能吃我们河里的鱼和森林中的动物。

youdao

She says she fears the water is not fit for drinking, but there is nothing else to drink.

VOA: standard.2009.10.06

In the developing world they do it because that is often the only water fit to drink, and for the poor it is usually a significant expense.

ECONOMIST: It must also be clean

The water is said to be fit to drink. (After you.) You can fish for salmon, and there are dolphins downstream.

ECONOMIST: The Thames

Amidor, a mother of three, was making her order at a pizza restaurant, when her son, Schoen, who was then around 4 years old, proceeded to have a fit because she wanted him to drink water with his meal and he wanted a Yoo-hoo.

CNN: Your healthiest fast food choices