| 1 | They have been driven by a ratchet effect. | |
| 2 | He's kind and forgiving, and he knows how to handle a ratchet screwdriver. | |
| 3 | Switching between the two games seemed to create a ratchet-like effect. | |
| 4 | They have been driven by a ratchet effect.Individual American politicians have great latitude to propose new laws. | |
| 5 | In a computer, the games are played 100 times, mimicking a ratchet with many teeth. |