5 sentences

1. 柠檬是一种酸性水果。

   níng​méng shì yī​zhǒng suān​xìng shuǐ​guǒ.

   Lemon is an acidic fruit.

   Source: CCMatrix

2. 胃是酸性环境。

   wèi shì suān​xìng huán​jìng.

   The stomach is an acidic environment.

   Source: CCMatrix

3. 避免任何酸性或咸味，如柳橙汁或椒盐脆饼。

   bì​miǎn rèn​hé suān​xìng huò xián​wèi, rú liǔ​chéng​zhī huò jiāo​yán​cuì​bǐng.

   Avoid anything acidic or salty, like orange juice or pretzels.

   Source: CCMatrix

4. 避免辛辣或酸性食物，如柑橘类水果，也可以减少恶心的风险。

   bì​miǎn xīn​là huò suān​xìng shí​wù, rú gān​jú lèi shuǐ​guǒ, yě kě​yǐ jiǎn​shǎo ě​xin de fēng​xiǎn.

   Avoiding spicy or acidic foods, such as citrus fruits, can also reduce the risk of nausea.

   Source: CCMatrix

5. 当你把小苏打、酸性成分和液体混合在一起时，你会得到二氧化碳气体的气泡。

   dāng nǐ bǎ xiǎo​sū​dá, suān​xìng chéng​fen hé yè​tǐ hùn​hé zài yī​qǐ shí, nǐ huì dé dào èr​yǎng​huà​tàn qì​tǐ de qì​pào.

   When you mix together the baking soda, acidic ingredient, and liquid you'll get bubbles of carbon dioxide gas.

   Source: CCMatrix