n.誓約

v.發(fā)誓

All the men took a vow of loyalty to their leader. 所有士兵都發(fā)誓效忠他們的指揮官。

Once he took the vow his loyalty never wavered. 他一旦宣了誓，他就一直忠貞不渝。

Catholic priests take a vow of celibacy. 天主教神父發(fā)誓不結婚。

I vowed never to reveal the secret. 我發(fā)誓決不泄漏這一秘密。

I vow to give my time and strength to this case. 我發(fā)誓將我的時間和精力致力于這一事業(yè)。