gauntlet
[ˈɡɔntlɪt, ˈɡɑnt-]
n.
（中世纪武士用的）金属手套;
（骑马，击剑等用的）长手套;
交叉射击;
严酷考验;
例句:
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With his mailed gauntlet he brushed away a furtive tear.
来自Joyce
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She picked up the gauntlet in her incisive Keynote Address to the Conference.
在大会主题发言中，她言辞犀利地回应挑战。
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They have thrown down the gauntlet to the PM by demanding a referendum.
他们向首相挑战,要求进行公民投票.
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He was not one to retreat but rather one who would take up the gauntlet.
他不是一个想退却的人,倒是一个宁愿应战的人.
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You've thrown down the gauntlet which I readily accept.
来自BBC
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What we got was the gauntlet of demagoguery.
来自NEWYORKER