jerk

Compared meaning: a sudden, quick pull (noun).

比较义项：突然的猛拉、急拉（名词）。

• jerk 本词

  Describes a sudden, abrupt pull or movement, often jolting, uncontrolled, or rough, as in a spasm or careless yank; emphasizes suddenness rather than steady force.

  表示突然、猛烈的一拉或一动，动作急促，常带有颠簸感、不受控制或粗鲁的意味；强调的是“突然”而不是持续的力量。

  The bus stopped with a sudden jerk that threw everyone forward.

  公共汽车猛地一停，把大家都往前甩了出去。

• tug

  Describes a pull that emphasizes the force itself, which can be gentle or firm and is often sustained or repeated, as when getting someone's attention or pulling something toward you.

  表示强调拉力本身的动作，可轻可重，常常是持续或反复的拉动，比如引起别人注意或把东西拉向自己。

  She gave the leash a gentle tug to call the dog back.

  她轻轻拉了一下牵引绳，把狗叫了回来。

Both mean a sudden pull, but the feeling differs. Jerk emphasizes a sudden, jolting movement, often uncontrolled or rough, like a spasm. Tug emphasizes the force of the pull itself, which can be gentle or firm and is often steady or repeated.

这两个词都可以表示突然的一拉，但语感不同：jerk强调动作的急促、颠簸，常带有不受控制或粗鲁的意味；tug强调拉力本身，动作可轻可重，常是持续或反复用力，比如引起别人注意。这里不比较jerk表示“讨厌的人”的意思。

Compared meaning: pull suddenly and hard (verb).

比较义项：猛地拉动（动词）。

• jerk 本词

  Emphasizes a sudden, sharp, jolting motion; can describe any abrupt movement (pulling, pushing, jolting) and is often used of body parts moving involuntarily.

  强调突然、急促、颠簸式的动作；可以描述任何突然的动作（拉、推、抖动），常用于身体部位不由自主地动一下。

  He jerked his hand back when the pan touched his skin.

  锅碰到他皮肤的瞬间，他猛地把手缩了回去。

• yank

  More informal and specifically means to pull something hard and suddenly, usually to remove or free it; almost always used with a direct object being pulled.

  更口语化，特指用力猛拉某物，通常是为了把它拉出来或弄松；几乎总是带有一个被拉动的直接宾语。

  She yanked the stuck drawer until it finally came open.

  她使劲猛拉卡住的抽屉，直到它终于被拉开。

Both mean to pull suddenly with force, but jerk is broader. Jerk describes any sudden, sharp, jolting motion, including body parts moving on their own. Yank is more informal and means pulling something hard and suddenly, usually to remove or free it.

两词都表示突然用力拉扯的动作，但 jerk 强调动作的突然、猛烈，可以泛指任何突然的猛拉、猛推或猛动；yank 更强调用力把东西一下子拉出来或拉动。这里不比较 jerk 表示“混蛋、讨厌鬼”的名词义。