4 sentences

1. 政府采取措施平息了这场骚乱。

   zhèng​fǔ cǎi​qǔ cuò​shī píng​xī le zhè cháng sāo​luàn.

   The government took measures to quell the riot.

   Source: Dong Chinese Dictionary

2. 警方出动特警平息了街头骚乱。

   jǐng​fāng chū​dòng tè​jǐng píng​xī le jiē​tóu sāo​luàn.

   The police dispatched SWAT teams to quell the street riots.

   Source: Dong Chinese Dictionary

3. 警方正在努力平息这场由于抗议引发的骚乱。

   jǐng​fāng zhèng​zài nǔ​lì píng​xī zhèi cháng yóu​yú kàng​yì yǐn​fā de sāo​luàn.

   The police are working hard to quell the riot sparked by the protest.

   Source: Dong Chinese Dictionary

4. 在一阵大雨过后，风浪逐渐平息了。

   zài yī zhèn dà​yǔ guò​hòu, fēng​làng zhú​jiàn píng​xī le.

   After a heavy rain, the wind and waves gradually subsided.

   Source: Dong Chinese Dictionary