4 sentences

1. 他的话非常有说服力。

   tā de huà fēi​cháng yǒu shuō​fú​lì.

   His words are very persuasive.

   Source: Dong Chinese Dictionary

2. 你的论证确实很有说服力。

   nǐ de lùn​zhèng què​shí hěn yǒu shuō​fú​lì.

   You've certainly made a compelling argument.

   Source: OpenSubtitles

3. 他的发言非常简短，却很有说服力。

   tā de fā​yán fēi​cháng jiǎn​duǎn, què hěn yǒu shuō​fú​lì.

   His speech was very short but very persuasive.

   Source: Dong Chinese Dictionary

4. 他的说辞极具说服力，赢得了大家的支持。

   tā de shuō​cí jí jù shuō​fú​lì, yíng​dé le dà​jiā de zhī​chí.

   His argument was very persuasive and won everyone's support.

   Source: Dong Chinese Dictionary