劍橋詞典the time at which a change or an effect cannot be stopped 臨界點(diǎn)，引爆點(diǎn)，爆發(fā)點(diǎn) The earth has already passed the tipping point in terms of global warming . 就全球變暖而言，地球已經(jīng)超出了臨界點(diǎn)。 返回 tipping point