give someone a run for his/her/their money idiom
不让（某人）轻易取胜；让（某人）竭尽全力才获胜
to not allow someone to win easily
We're going to give the other candidate a run for her money. 我们不会让另外的那个候选人轻易获胜的。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。