Translation of "Skeptical" in Chinese

We're very skeptical.

我们非常怀疑。

- He is more skeptical than I am.
- She is more skeptical than I am.

他比我有点多疑。

People are often quite skeptical about things unless given believable proof.

人们常常对事情持怀疑态度，除非给他们提供可信的证据。