n. 紧张, 拉紧, 张力, 过劳, 扭伤, 血缘, 种, 族, 气质, 曲调, 旋律, 口吻

vt. 使劳累, 拉紧, 过分使用, 扭伤, 滥用, 曲解, 滤

vi. 尽力, 努力, 紧拉, 弯曲, 被滤出

n. (physics) deformation of a physical body under the action of applied forces

n. (psychology) nervousness resulting from mental stress

n. injury to a muscle (often caused by overuse); results in swelling and pain

n. an intense or violent exertion