3 sentences

1. 他们的工作是保护社会免受罪犯的侵害。

   tā​men de gōng​zuò shì bǎo​hù shè​huì miǎn shòu zuì​fàn de qīn​hài.

   Their job is to protect society from criminals.

   Source: CCMatrix

2. 和积极的人们交往，保护自己不受所有形式的消极侵害。

   hé jī​jí de rén​men jiāo​wǎng, bǎo​hù zì​jǐ bù​shòu suǒ​yǒu xíng​shì de xiāo​jí qīn​hài.

   Associate with positive people and protect yourself from all types of negativity.

   Source: UM-Corpus: Education

3. 在怀孕期间，免疫系统会发生变化，这样它就能保护你和孩子免受疾病的侵害。

   zài huái​yùn qī​jiān, miǎn​yì​xì​tǒng huì fā​shēng biàn​huà, zhè​yàng tā jiù néng bǎo​hù nǐ hé hái​zi miǎn​shòu jí​bìng de qīn​hài.

   During pregnancy, your immune system changes so that it can protect both you and your baby from disease.

   Source: CCMatrix