It was a pretty convincing speech, I thought.

我认为这是一个极有说服力的演说辞。

youdao

Yet the ordinary voters may not be so sure: according to a survey by BVA, a polling group, 53% did not find her speech convincing.

但是普通选民对其可并不十分看好：一个民调机构BVA的调查结果显示，约有53%的民众并不看好其竞选纲领。

youdao

Then, have a responsible Party cadre who enjoys prestige make a summing-up speech that is both analytical and convincing to effect a complete change in the atmosphere.

然后，由较有威信的党的负责人作一个有分析有说服力的总结性演说，将空气完全转变过来。

youdao