2 sentences

1. 他在从军十年后被晋升为中校。

   tā zài cóng​jūn shí nián hòu bèi jìn​shēng wéi zhōng​xiào.

   He was promoted to lieutenant colonel after ten years in the army.

   Source: Dong Chinese Dictionary

2. 张中校在部队服役多年，有着丰富的指挥经验。

   Zhāng zhōng​xiào zài bù​duì fú​yì duō nián, yǒu zhe fēng​fù de zhǐ​huī jīng​yàn.

   Lieutenant Colonel Zhang has served in the army for many years and has rich command experience.

   Source: Dong Chinese Dictionary