# stiffen ##### 词义 - 英:/ˈstɪfn/; 美:/ˈstɪfn/ - #词性/v 使硬挺;(尤指因气愤或害怕,使浑身或身体的一部分)变僵硬,变僵直,绷紧;(使)难以弯曲,难以活动,发僵;(使)变强硬,变坚定 ##### 例句 - Joints stiffen with advancing years . - 人一上年纪,关节就变僵硬了。 - They curve their bodies , stiffen their legs and point their heads down toward the ground . They continue to repeat these series of landings and leaps . - 屈体、绷紧四肢、头抵地,起跳、落地,跳羚不断重复着这一系列的动作。 - I stiffened my back and faced him . - 我挺直了腰杆面对着他。 ##### 形态 - #形态/word_third stiffens - #形态/word_ing stiffening - #形态/word_done stiffened - #形态/word_past stiffened