| 41. | work for, join, contact the underground |
| 为地下组织工作, 参加地下组织, 与地下组织取得联系
|
| 42. | a contact man |
| 联络人
|
| 43. | a contact [magnetic] mine |
| 触发［磁性］地雷。
|
| 44. | contact lenses |
| 隐形眼镜片；接触透镜
|
| 45. | keep in contact [touch] with |
| 与……保持联系[接触]
|
| 46. | face-to-face contact |
| 面对面的接触
|
| 47. | be out of radio contact with |
| 和…失去无线电联络
|
| 48. | a universal contact |
| 万能接头
|
| 49. | a disease communicated by contact |
| 通过接触传染的疾病
|
| 50. | break off contact |
| 中断联系
|