I promise that what I have told you today is true C cross my heart.

VOA: special.2010.07.11

Quite often, you guys come up with questions that never cross my mind, so it's very interesting.

你们经常能提出,非常有创造力的问题来,这非常有意思

耶鲁公开课 - 基础物理课程节选

It doesn't even have to cross my mind."

我根本就没必要去想它“

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