你能肯定吗？嗯，也许你说得对。

Are you sure? Well, perhaps you are right.

youdao

你说她被困在了书里，你能肯定吗？

You say she's trapped in that book. How do you know?

youdao

旅客：你能肯定吗？

G: Are you sure?

youdao

but I think it's motivational, and so I said, are you sure that J.R. Hicks invented the term "forward rate"?

但我觉得这很有趣,我问他,你能肯定,J·R·希克斯是"远期利率"的提出者吗

耶鲁公开课 - 金融市场课程节选