the day before yesterday的音标：the day before yesterday的英式发音音标为：[ðə dei bi'fɔ: 'jestədi]the day before yesterday的美式发音音标为：[ði de bɪ'fɔr 'jɛstɚˌde]...

adv.前天，前日...

the day before yesterday前天Dr. Smith looked in on the invalid the day before yesterday.史密斯大夫前天去看望那个病人.The accident happened the day before yesterday.那意外事故发生在前天....