名词协议，协定; 盖印合同; [法律]契约条款; [宗教]誓约

不及物动词立约，立誓; 订立盟约; 订立契约

及物动词立约承诺; 缔结盟约; 订协定

及物动词

1. I covenanted to pay $5000 a year to rebuild the college.
我立书保证，每年付五千美元帮助重建那所学院。

2. They covenanted that their hostages would be present.
他们保证他们的人质到场。

3. Before signing, he covenanted that he would remain in possession.
签字以前，他要求以保留所有权为条件。

不及物动词

1. They covenanted in loyalty to the king.
他们缔结盟约以效忠国王。

1. (受法律约束的)协约，契约，合同
A covenant is a formal written agreement between two or more people or groups of people which is recognized in law.

e.g. ...the International Covenant on Civil and Political Rights.
《公民权利和政治权利国际公约》

2. (定期付款的)书面承诺;(尤指向慈善机构定期捐款的)契约
A covenant is a formal written promise to pay a sum of money each year for a fixed period, especially to a charity.

e.g. If you make regular gifts through a covenant we can reclaim the income tax which you have already paid on this money.
如果你签订契约定期捐赠，那么我们可以要求返还你这笔钱上交的所得税。