Tatoebatommy_sanCC BY 2.0 FR和音声英音声この誓約書には法的拘束力はありません。英語の訳This written pledge is not legally binding.出典: Tatoeba文番号 2976551
事情変更の原則じじょうへんこうのげんそく法律clausula rebus sic stantibus (legal principle that agreements become non-binding if there is a major, unforeseeable change of circumstances)