3 sentences

1. 立大功者必有重赏。

   lì dà​gōng zhě bì yǒu zhòng​shǎng.

   Those who perform great deeds will be handsomely rewarded.

   Source: Dong Chinese Dictionary

2. 他即便立了大功，也绝不向人诩。

   tā jí​biàn lì le dà​gōng, yě jué bù xiàng rén xǔ.

   Even if he achieves great things, he never boasts to anyone.

   Source: Dong Chinese Dictionary

3. 由于立了大功，这位公公深受皇帝信任。

   yóu​yú lì le dà​gōng, zhè wèi gōng​gong shēn shòu huáng​dì xìn​rèn.

   Because of his great service, the eunuch was deeply trusted by the emperor.

   Source: Dong Chinese Dictionary