2 sentences

1. 我们要尊敬师长，团结同学。

   wǒ​men yào zūn​jìng shī​zhǎng, tuán​jié tóng​xué.

   We should respect our teachers and elders and show solidarity with our classmates.

   Source: Dong Chinese Dictionary

2. 他在抗日战争期间担任师长。

   tā zài kàng Rì zhàn​zhēng qī​jiān dān​rèn shī​zhǎng.

   He served as a division commander during the War of Resistance against Japanese Aggression.

   Source: Dong Chinese Dictionary