负约的英文：
break a promise

break是什么意思：
v. 打破；弄坏；兑开；违反；破解；使破产；突破；中断；削弱；突发；破晓
n. 破裂；中断，休息；骤变

to devastate; to break
使垮掉

Did you break your toy?
你弄坏你的玩具了吗？

break [lift, raise] a blockade
冲破 [解除] 封锁

break down resistance
粉碎反抗，制服反抗

break [smash] the jinx
破解霉运;

promise是什么意思：
n. 许诺；希望，指望
v. 许诺；给人以…的指望或希望

His promise was faithfully kept.
他忠实地履行自己的诺言。

The preacher promised us eternity.
这传道士向我们许诺会有来世。

She recalled her promise.
她取消了约言。

Tom promised to school me.
汤姆同意担负我的学费。

A promise attended to is a debt settled
践约如同偿欠.