| 41. | a rotary drill, clothes drier, switch , etc |
| 旋转式钻机, 干衣机, 开关等
|
| 42. | press a switch (up) |
| (向上)扳开关
|
| 43. | the click of a switch |
| 开关的 嗒声
|
| 44. | a faulty switch |
| 有毛病的开关
|
| 45. | fumble for the light switch |
| 摸索电灯开关
|
| 46. | a lift, bell, switch that doesn't work |
| 失灵的电梯, 电铃, 开关
|
| 47. | a faulty light switch sending out sparks |
| 冒着火花的有故障的电灯开关
|
| 48. | a light switch |
| 灯的电门
|
| 49. | a switch from gas to electric |
| 由使用煤气改为使用电气
|
| 50. | make a switch from publishing to teaching |
| 由出版工作改做教学工作
|