tirar piedras sobre el propio tejado betyder på engelska
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tirar piedras sobre el propio tejadoverb
cut off one's nose to spite one's face(harm oneself as a result of trying to harm an adversary) verb [UK: kʌt ɒf wʌnz nəʊz tuː spaɪt wʌnz feɪs] [US: ˈkət ˈɒf wʌnz noʊz ˈtuː ˈspaɪt wʌnz ˈfeɪs]