teething troublesWiktionary 原文英/ˈtiːðɪŋ ˈtrʌb(ə)lz/美/ˈtiðɪŋ ˈtrʌb(ə)lz/词源说明A reference to teething (“the eruption, through the gums, of the milk teeth”) and the accompanying discomfort, which occur during early life.释义名词noun1idiomaticProblems that are to be expected with any new and untried product, system, or venture.