But I also take it that Tolstoy means to be putting forward more than just a claim that there could be such a person.

但我也认为托尔斯泰是认为真有其人,而不只是声称世界上有这样一种人。

耶鲁公开课 - 死亡课程节选

Well, I don't know really the restaurants even if I'm a chef.

虽然我是个厨师，但我还真不了解那里的餐厅。

唐人街的美食 - SpeakingMax英语口语达人