| stiffen | |
| 级别 | 第10级 |
| 音标 | [ ˈstɪfn ] |
| 解释 | 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 |
| 发音 |  |
| 例句 |
1. 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。 2. 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。 |
