| 41. | operate at peak capacity |
| 全力运转；发挥最大能力
|
| 42. | operate a streak camera |
| 使用扫描照相机
|
| 43. | use [ operate ] a calculator |
| 使用计算器
|
| 44. | operate [use] a computer |
| 使用计算机
|
| 45. | operate a cruise |
| 进行巡航
|
| 46. | manage [ operate , run] a company |
| 管理一家公司
|
| 47. | work [click, function, hit, operate ] on all cylinders |
| （口）竭尽全力地干；运转正常
|
| 48. | operate in daylight |
| 公开进行
|
| 49. | use [ operate ] a drill to bore a hole in |
| 用钻孔机在…上钻孔
|
| 50. | operate a dynamo |
| 操作发电机
|