on one's word of honour

例句：

1. 1.He promised to help me with my homework, so I can trust him on his word of honor.
   他答应会帮我做家庭作业，所以我可以信任他的名誉承诺。
2. 2.The company is known for its honesty and integrity, which is why we can rely on their word of honor.
   这家公司以诚实和正直而闻名，这就是为什么我们可以依靠他们的名誉承诺。
3. 3. In our culture, it is considered disrespectful to break a promise made on someone's word of honor.
   在我们的文化中，违背一个人名誉上的诺言被认为是不尊重的。