throw down the gauntlet
US /θroʊ daʊn ðə ˈɡɔːnt.lət/
UK /θroʊ daʊn ðə ˈɡɔːnt.lət/
1.
发出挑战, 下战书
to issue a challenge or an invitation to fight or compete
:
•
The rival company threw down the gauntlet by launching a new product with superior features.
竞争对手公司通过推出具有卓越功能的新产品发出了挑战。
•
He threw down the gauntlet, daring anyone to beat his record.
他发出了挑战，敢于任何人打破他的记录。