v.（使）变硬，（使）强硬( stiffen的第三人称单数 )...

stiffens的音标：...

He stiffens in momentary panic.他心里一阵惊慌,浑身不自在起来.Our resolution stiffens.我们的决心加强了。Canvas stiffens as it dries.帆布干时变硬.Heating the foam stiffens it and forms it.暖气泡沫stiffens它和形式....

He stiffens in momentary panic.他心里一阵惊慌,浑身不自在起来.Canvas stiffens as it dries.帆布干时变硬.Heating the foam stiffens it and forms it.暖气泡沫stiffens它和形式....