| 31. | ride ( the ) circuit |
| 在审判区所辖各城镇作巡回审判
|
| 32. | a closed [an open] circuit |
| 闭[开]路
|
| 33. | the college lecture circuit |
| 大学巡回讲学
|
| 34. | a combined circuit |
| 组合电路
|
| 35. | make [fetch] a complete circuit of the town |
| 绕城镇兜一整圈
|
| 36. | an accidental leak in an electric circuit |
| 电路意外漏电
|
| 37. | a gossip circuit |
| 小道消息途径
|
| 38. | a high [low] tension circuit |
| 高[低]压电路
|
| 39. | a judicial circuit |
| 巡回审判（区）
|
| 40. | the periodic circuit of the earth round the sun |
| 地球绕太阳的周期性环行
|