我们需要购买纯净水。
wǒmen xūyào gòumǎi chúnjìng shuǐ 。
We need to buy pure water.
喝纯净水对身体很好。
hē chúnjìng shuǐ duì shēntǐ hěnhǎo 。
Drinking pure water is very good for the body.
这瓶纯净水是从山泉里来的。
zhè píng chúnjìng shuǐ shì cóng shānquán lǐ lái de 。
This bottle of pure water comes from the mountain spring.