If you describe someone or something as convincing, you mean that they make you believe that a particular thing is true, correct, or genuine.
例句
Scientists say there is no convincing evidence that power lines have anything to do with cancer...科学家们说，并没有确凿的证据表明输电线和癌症之间有什么联系。He sounded very convincing.他的话听起来很有说服力。