1、我保证的英文是：By my troth。
2、其中troth的英式发音为[trəʊθ]，美式发音为[trɑ:θ] ，意思是：誓言，诚实与…订婚。
拓展资料
By my troth
1、我保证，我会补偿你的。
I'll make it up to you, I promise .
2、我保证来年之前我们将解决这个问题。
I pledge that by next year we will have the problem solved.
3、克莱尔要我保证把真相告诉她。
Claire had made me promise to tell her the truth .
4、“你保证？”——“好的，我保证。”
'You promise?' — 'All right, I promise.'
5、他忙不迭地向我保证，并没有什么悲惨的事要诉说。
He hastened to assure me that there was nothing traumatic to report .
6、什么难学不难学，我保证学会。
No matter how hard it is, I'll learn how to do it.
7、“我会得到共和党提名的，”他向我保证，“这是十拿九稳的事。”
'I'll get the Republican nomination,' he assured me. 'It's in the bag.'
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