jerk /dʒə:k/ I. vt.& vi. 1. (使)猝然一动：jerk out the knife 猛地拔出小刀 The train jerked to a stop. 火车突然停住。 2. 突然急促又断续地说(out): Don’t jerk out your words; try to recite more smoothly. 不要断断续续地背诵，要背得流利些。‖II. n. ［c］ 1. 急推，急拉，急扭：give the string a jerk 把绳子猛一拉；pull with a sudden jerk 猛然扯了一下 2. 震动: The train stopped with a jerk (a series of jerks). 火车颠动了一(几)下停住了。