同一人或事物; 完全一樣It turns out that her aunt and my cousin are one and the same (person). 原來她姑姑就是我表姐。One and the same idea occurred to each of them. 他們都產生同樣的想法。
具有相同觀點, 相互理解She and her mother are not on the same wavelength. 她和她的母親不具有相同的觀點, 相互不能互相協調, 互相理解。The new general was not on the same wavelength as the other commanders. 新上任的將軍與其他指揮官們意見不合。