矿泉水

一瓶矿泉水

yì píng kuàngquánshuǐ

A bottle of mineral water

我要买矿泉水

wǒ yào mǎi kuàngquánshuǐ

I want to buy mineral water

矿泉水多少钱？

kuàngquánshuǐ duōshao qián?

How much does mineral water cost?