1VERB 变得僵硬;变得紧张;绷紧 If you stiffen, you stop moving and stand or sit with muscles that are suddenly tense, for example because you feel afraid or angry. 变得僵硬;变得紧张;绷紧
Ada stiffened at the sound of his voice. [VERB]
埃达听到他的声音吓得人都僵住了。
The father's face stiffened with dismay. [VERB]
父亲因为悲痛而面部表情凝重。
2V-ERG (肌肉或关节)变得僵硬;(使)变得不易弯曲;(使)变得不灵活 If your muscles or joints stiffen, or if something stiffens them, they become difficult to bend or move. (肌肉或关节)变得僵硬;(使)变得不易弯曲;(使)变得不灵活 [Also VERB n] [Also VERB n PREPOSITION]
The blood supply to the skin is reduced when muscles stiffen. [VERB]
Stiffen up means the same as stiffen .stiffen up 同 stiffen
These clothes restrict your freedom of movement and stiffen up the whole body.
这些衣服使你行动不便,让全身都变得不灵活。
'I just stiffened up, and the more they told me to 'be natural', the more I felt not at all relaxed.'
“我整个人都僵硬了,他们越是让我‘自然些’,我就越紧张。”
3V-ERG (态度或行为)变得更强硬,变得更严厉;(使)变得更坚定 If attitudes or behaviour stiffen, or if something stiffens them, they become stronger or more severe, and less likely to be changed. (态度或行为)变得更强硬,变得更严厉;(使)变得更坚定
Russian resistance suddenly stiffened because there was no room for retreat. [VERB]
俄罗斯的反抗突然变得强硬起来,因为已经没有退路了。
Canada has recently stiffened its immigration rules. [VERB noun]