| 31. | This large gear turns the small one to rotate the cylinder. |
| 这个大齿轮带动小齿轮使滚筒旋转。
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| 32. | The work was finished at high gear . |
| 这项工作高速度完成了。
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| 33. | The machinery is in gear . |
| 机器运转正常。
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| 34. | He is in gear now. |
| 他现在很健康。
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| 35. | Since liberation the oil production has been running in high gear . |
| 解放以来，石油生产一直在高速度发展。
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| 36. | You'll have to go into second gear to get the car up this hill. |
| 你得换二挡才能把车开上这个山头。
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| 37. | There are so many people on holiday that things are out of gear at the office. |
| 去度假的人太多，办公室的工作都脱节了。
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| 38. | You have to gear down when you drive uphill. |
| 上坡行驶时必须换慢挡。
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| 39. | The cogs gear smoothly. |
| 轮牙啮合得很好。
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| 40. | Tell the driver to gear up, please. |
| 请叫司机换快挡。
|