tug

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

比较义项：突然的猛拉、急拉（名词）。

• jerk

  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 本词

  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。