sceptic

/ˈskeptɪk/📚 56683六级GRE
A sceptic is a person who has doubts about things that other people believe. 怀疑论者

noun [专属名词]持怀疑态度的人,怀疑论者;无神论者

He is a sceptic who tries to keep an open mind.
他是一个试图保持开明观点的怀疑论者。

单词造句:
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You may be a sceptic and put it down to life's inequalities. 你可能是个怀疑论者,并将其归因于生活的种种不平等。
"I am a scholar and a sceptic," he says. “我是一个学者和怀疑论者”,他说。