tick /tik/ I. n. ［c］ 1.记号，句号：Give/Put a tick to what you’ve done. 把你做过的打上记号。 2.(钟表)滴答声：It was quiet, all I could hear was the tick of the clock. 很静，我能听到的就是钟的滴答声。 ‖II. vt. & vi. 1. 给…标记号: tick off an item on a list在表格给一个项目标上记号  2. 发出滴答声: Your watch ticks very loudly!你手表的滴答声很响。 3.用于短语动词tick away/by (时间一秒、一分地)过去：The hours ticked by.时间一小时一小时地过去。tick off v. & n. 给…标记号；(温和地)责备：He ticked off the items one by one. 他逐项打上记号。The teacher gave me a ticking-off for being late. 迟到了，老师向我提出了批评。tick over (发动机)空转，慢转；(工作)进展缓慢，呆滞：The car’s engine is ticking over. 汽车发动机在怠速转动。The organization is just ticking over and is in need of fresh ideas. 这个组织工作死气沉沉，需要引进新思想。