give someone/something a run for their money

US /ɡɪv ˈsʌm.wʌn ˈsʌm.θɪŋ ə rʌn fɔr ðɛr ˈmʌn.i/
UK /ɡɪv ˈsʌm.wʌn ˈsʌm.θɪŋ ə rʌn fɔr ðɛr ˈmʌn.i/
"give someone/something a run for their money" picture
1.

让...吃尽苦头, 与...一较高下

to compete very well against someone or something, making them work hard to win

:
The underdog team really gave the champions a run for their money in the final match.
弱队在决赛中真的让冠军队吃尽了苦头
Our new product is designed to give the market leader a run for their money.
我们的新产品旨在与市场领导者一较高下