verb🔗Share变硬，使僵硬。 To make stiff."The cold air stiffens my fingers, making it hard to type. "寒冷的空气冻得我的手指发僵，很难打字。physiologybodyactionChat with AIVocabulary GamePractice Reading
verb🔗Share变硬，僵硬，变得僵硬。 To become stiff."After sitting at the desk for hours, my back stiffens. "在办公桌前坐了几个小时后，我的背就变得僵硬了。physiologybodyChat with AIVocabulary GamePractice Reading
