prove up to the hilt

例句：

1. 1. He proved upto the hilt that he was a man of his word.
   他彻底证明了他是一个言出必行的人。
2. 2. The team proved up to the hilt in their performance against the rival team.
   该队在与对手的比赛中表现出色，充分证明了自己。
3. 3. She proved up to the hilt that she was capable of handling the job.
   她证明了自己有能力胜任这项工作。