5 sentences

1. 到处都潜伏着危险。

   dào​chù dōu qián​fú zhe wēi​xiǎn.

   Danger lurks everywhere.

   Source: OpenSubtitles

2. 潜伏在城里的特务最终被识破了。

   qián​fú zài chéng lǐ de tè​wu zuì​zhōng bèi shí​pò le.

   The spies lurking in the city were finally exposed.

   Source: Dong Chinese Dictionary

3. 间谍潜伏在敌方城市里多年，等待行动指令。

   jiàn​dié qián​fú zài dí​fāng chéng​shì lǐ duō nián, děng​dài xíng​dòng zhǐ​lìng.

   The spy lurked in the enemy city for years, waiting for orders to act.

   Source: Dong Chinese Dictionary

4. 他在敌军内部长期潜伏，主要负责搜集情报和反谍。

   tā zài dí​jūn nèi​bù cháng​qī qián​fú, zhǔ​yào fù​zé sōu​jí qíng​bào hé fǎn​dié.

   He was undercover inside the enemy forces for a long time, mainly responsible for intelligence gathering and counter-espionage.

   Source: Dong Chinese Dictionary

5. 政府正采取有力措施，坚决肃清潜伏在系统内部的腐败分子。

   zhèng​fǔ zhèng cǎi​qǔ yǒu​lì cuò​shī, jiān​jué sù​qīng qián​fú zài xì​tǒng nèi​bù de fǔ​bài fèn​zǐ.

   The government is taking effective measures to resolutely purge corrupt elements lurking within the system.

   Source: Dong Chinese Dictionary