n. 誓约, 誓言, 许愿

vi. 起誓, 发誓, 郑重宣言

vt. 立誓, 起誓要, 郑重地宣布

n. a solemn pledge (to oneself or to another or to a deity) to do something or to behave in a certain manner

v. make a vow; promise

v. dedicate to a deity by a vow