3 sentences for 長 (zhǎng — leader)

1. 他在部队里担任排长。

   tā zài bù​duì lǐ dān​rèn pái zhǎng.

   He serves as a platoon leader in the army.

   Source: Dong Chinese Dictionary

2. 他是我的长兄。

   tā shì wǒ de zhǎng xiōng.

   He is my eldest brother.

   Source: Dong Chinese Dictionary

3. 身为一校之长，他每天都要处理许多校务。

   shēn​wéi yī xiào zhī zhǎng, tā měi tiān dōu yào chǔ​lǐ xǔ​duō xiào​wù.

   As the principal, he handles many school affairs every day.

   Source: Dong Chinese Dictionary