stiffens
v.
(使)变硬,(使)强硬( stiffen的第三人称单数 );
例句:
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Laser surgery stiffens the palate to reduce vibration.
来自BBC
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Now he stiffens up, even redder, doused with fire.
来自NEWYORKER
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He stiffens in momentary panic.
他心里一阵惊慌,浑身不自在起来.
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Canvas stiffens as it dries.
帆布干时变硬.
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Heating the foam stiffens it and forms it.
暖气泡沫stiffens它和形式.
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The slightest sound stiffens his whole body.
来自NEWYORKER