| 51. | a switch in method, policy, opinion |
| 方法, 政策, 观点的改变
|
| 52. | switch to modern methods |
| 改用现代方法
|
| 53. | switch the conversation to a different topic |
| 改变谈话的话题
|
| 54. | switch a train into a siding |
| 把一列火车转入支线轨道
|
| 55. | Switch off the gas, power, etc at the mains |
| 切断煤气源, 电源等
|
| 56. | a switch board |
| （电）配电板；交换台
|
| 57. | switch on [off] the radio |
| 开[关]收音机
|
| 58. | switch on [off] a lamp |
| 开[关]灯
|
| 59. | put [ switch , turn] off [out] a light |
| 关灯
|
| 60. | put [ switch , turn] on a light |
| 开灯
|