3 sentences

1. 他代理这家公司的法律事务。

   tā dài​lǐ zhè jiā gōng​sī de fǎ​lǜ shì​wù.

   He represents the company's legal affairs.

   Source: Dong Chinese Dictionary

2. 他在浏览器中配置了全局代理。

   tā zài liú​lǎn​qì zhōng pèi​zhì le quán​jú dài​lǐ.

   He configured a global proxy in the browser.

   Source: Dong Chinese Dictionary

3. 王部长目前担任代理省长一职。

   Wáng bù​zhǎng mù​qián dān​rèn dài​lǐ shěng​zhǎng yī zhí.

   Minister Wang is currently serving as the acting governor.

   Source: Dong Chinese Dictionary