3 sentences for 立功 (lì​gōng — distinguish oneself)

1. 他因立功被晋为上校军衔。

   tā yīn lì​gōng bèi jìn wéi shàng​xiào jūn​xián.

   He was promoted to the rank of colonel for his meritorious service.

   Source: Dong Chinese Dictionary

2. 他在抢险救灾中立功受奖。

   tā zài qiǎng​xiǎn jiù​zāi zhōng lì​gōng shòu​jiǎng.

   He performed meritorious service and was rewarded during the disaster relief efforts.

   Source: Dong Chinese Dictionary

3. 他在朝廷中立功后被迁为大将军。

   tā zài cháo​tíng zhōng lì​gōng hòu bèi qiān wéi dà​jiāng​jūn.

   After his achievements at court, he was promoted to General-in-Chief.

   Source: Dong Chinese Dictionary