3 sentences

1. 他是这个单位的副局长。

   tā shì zhè​ge dān​wèi de fù jú​zhǎng.

   He is the deputy director of this unit.

   Source: Dong Chinese Dictionary

2. 我会告诉局长的。

   wǒ huì gào​su jú​zhǎng de.

   I'll let the chief know.

   Source: OpenSubtitles

3. 王局长正在主持今天的会议。

   Wáng jú​zhǎng zhèng​zài zhǔ​chí jīn​tiān de huì​yì.

   Director Wang is chairing today's meeting.

   Source: Dong Chinese Dictionary