1 sentence

1. 为了安心，一些安装公司提供年度服务检查。

   wèi​le ān xīn, yī​xiē ān​zhuāng gōng​sī tí​gōng nián​dù fú​wù jiǎn​chá.

   For peace of mind some installation companies offer an annual service check.

   Source: CCMatrix