persuasive

形容词 persuasive:

1. tending or intended or having the power to induce action or belief
2. capable of convincing

1. Persuasive, powerful discourse.
   雄辩有说服力的，有力的演讲
2. They believed the child by his persuasive reasons.
   他们因那个孩子有说服力的理由相信了他。
3. He talked to her with persuasive manner.
   他以晓之以礼的态度劝说她。
4. Your argument seemed not very persuasive.
   你的论据不太有说服力。