stiffen
英['stɪf(ə)n]
美['stɪfn]
- vi. 变硬；变猛烈；变粘
- vt. 使变硬；使粘稠
英英释意
- 1. become stiff or stiffer;
- "He stiffened when he saw his boss enter the room"
- 2. make stiff or stiffer;
- "Stiffen the cream by adding gelatine"
- 3. restrict;
- "Tighten the rules"
- "stiffen the regulations"