on my word

例句：

1. 1. I'll doit on my word.
   我会做到的。
2. 2. Shesaid she would come, but she didn't show up on my word.
   她说她会来，但她没有按我的承诺来。
3. 3. He promised to finish the project onmy word, but he never did.
   他承诺会按时完成这个项目，但他没有做到。