upon my word

• adv. 一定(必定)

例句

用作副词 (adv.)

1. Upon my word she won the lottery.
   我敢保证，她一定是中了彩票。
2. He said that he would be the equal of his word.
   他说他一定会说到做到。

词汇搭配

• my word upon it 我敢保证