常理

    chánglǐ

    1. Nouncommon sense; conventional reasoning and morals

    1.别违背常理。Bié wéibèi chánglǐ.Don't defy common sense.

    2.这种行为完全不合常理。Zhèzhǒng xíngwéi wánquán bùhé chánglǐ.This behavior just doesn't make sense.

    3.他声称没看见,但这不合常理。Tā shēngchēng méi kànjiàn, dàn zhè bùhé chánglǐ.He claimed he didn't see it, but that defies common sense.