5 sentences

1. 他的理由非常充分，令人信服。

   tā de lǐ​yóu fēi​cháng chōng​fèn, lìng rén xìn​fú.

   His reasons were very sufficient and convincing.

   Source: Dong Chinese Dictionary

2. 他的推论逻辑非常严密，令人信服。

   tā de tuī​lùn luó​ji fēi​cháng yán​mì, lìng rén xìn​fú.

   His reasoning is very logical and convincing.

   Source: Dong Chinese Dictionary

3. 他的理由听起来有些牵强，很难让人信服。

   tā de lǐ​yóu tīng qi​lai yǒu​xiē qiān​qiǎng, hěn nán ràng rén xìn​fú.

   His reasoning sounds a bit far-fetched and is hard to believe.

   Source: Dong Chinese Dictionary

4. 由于他处事公正，部下都很信服他。

   yóu​yú tā chǔ​shì gōng​zhèng, bù​xià dōu hěn xìn​fú tā.

   Because he is fair in his dealings, his subordinates all trust him.

   Source: Dong Chinese Dictionary

5. 他办事公正无私，部下们都很信服他。

   tā bàn​shì gōng​zhèng​wú​sī, bù​xià men dōu hěn xìn​fú tā.

   He is fair and selfless in his dealings, and his subordinates all respect and trust him.

   Source: Dong Chinese Dictionary