4周搞定2000+托福核心词
僵硬；坚硬；不自然；顽固
stiffness
常考释义
n. 僵硬；僵直；不灵活
Stiffness can usually be eased with heat or a warm bath.
热敷或热水澡通常可以缓解肌肉僵硬。
the painful stiffness in my right shoulder
我右肩酸痛僵硬的感觉
n. 拘谨；不自然；冷冰冰；生硬；冷冰冰
There had been stiffness and long silences.
气氛有时会拘谨局促，半天没人说话。
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