by definition片語KK [baɪ ˏdɛfəˋnɪʃən] /baɪ ˌdɛfəˈnɪʃən/發音片語1根據定義、按定義來說A square is, by definition, a rectangle with four equal sides.根據定義,正方形就是四邊等長的矩形。2必然、當然Any brand-new technology is by definition untested in the real world.任何全新的技術必然都未曾在現實中受過檢驗。