stiffen

US /ˈstɪfən/

UK /ˈstɪfn/

B1 中級
v.t./i.動詞 (及物/不及物)使變硬 ; 使變濃
The animals stiffen when they hear strange footsteps
v.t.及物動詞僵硬
If you stiffen your back you will stand still

影片字幕