4 sentences

1. 氢与氧化合生成水。

   qīng yǔ yǎng huà​hé shēng​chéng shuǐ.

   Hydrogen combines with oxygen to form water.

   Source: AI Challenger 2017

2. 黑巧克力含有丰富的化合物，可能会增加大脑中感觉良好的化学物质。

   hēi​qiǎo​kè​lì hán​yǒu fēng​fù de huà​hé​wù, kě​néng huì zēng​jiā dà​nǎo zhōng gǎn​jué liáng​hǎo de huà​xué wù​zhì.

   Dark chocolate is rich in compounds that may increase feel-good chemicals in your brain.

   Source: CCMatrix

3. 很多人都不知道，纤维其实也是一种碳水化合物。

   hěn​duō rén dōu bù​zhī​dào, xiān​wéi qí​shí yě​shì yī​zhǒng tàn​shuǐ​huà​hé​wù.

   Many people don't realize that fiber is actually a type of carbohydrate.

   Source: CCMatrix

4. 也许你已经考虑完全消除你的饮食中的脂肪，碳水化合物和/或钠。

   yě​xǔ nǐ yǐ​jing kǎo​lǜ wán​quán xiāo​chú nǐ de yǐn​shí zhōng de zhī​fáng, tàn​shuǐ​huà​hé​wù hé/ huò nà.

   Perhaps you have considered completely eliminating fats, carbohydrates and/or sodium from your diet.

   Source: CCMatrix