改ㄍㄞˇgǎi口ㄎㄡˇkǒu

改變原來說話的內容。《文明小史·第二九回》：「起先替家裡的人說得太矜張，不好改口，又恐被那王家表弟所笑。」

英to change one's tune, to modify one's previous remark, to change the way one addresses sb (as when one marries and starts to call one's husband's parents 爸爸[ba4 ba5] and 媽媽[ma1 ma5])

法changer sa manière de dire, changer de ton