# 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