stiffen [ˈstɪfn]以下由轻松背单词网站提供
单词级别第10级基本释义vi. 变硬;变猛烈;变粘 vt. 使变硬;使粘稠英英释义to become firm or more difficult to bend参考例句The blood supply to the skin is reduced when muscles stiffen. 当肌肉变得僵硬时,皮肤的供血量就减少了。I was breathing hard, and my legs were beginning to stiffen. 这时我却气吁喘喘地开始感到脚有点僵硬。 推荐阅读 |