(1)promise solemnly and formally; "I pledge that I will honor my wife"
(2)厳粛に、かつ正式に約束する
(3)promise solemnly; take an oath
(4)まじめに約束を守る
(5)宣誓する
(6)make a vow; promise; "He vowed never to drink alcohol again"
(7)誓いを立てる
(1)