She seemed unconvinced by their promises .

她似乎不相信他们的许诺。

I remain unconvinced of the need for change .

我仍怀疑改革的必要性。

She had a good point , but I shrugged unconvinced .

她有一个好点，但我耸耸肩信服。

However , the " and why " part of the subtitle left me unconvinced .

然而，题目中“以及为什么”的部分让我不服气。

But some voters remain unconvinced .

但是，有些选民还是不相信他。