| 51. | get positive proof of |
| 得到……的确实证据
|
| 52. | a positive [negative] character |
| 正[反]面人物
|
| 53. | a positive defect |
| 确定存在的缺点
|
| 54. | a negative [ positive ] sign |
| （数）负［正］号
|
| 55. | stress the positive side of the government's record |
| 强调政府工作的成绩
|
| 56. | take positive steps toward that end |
| 为实现那个目的采取积极步骤
|
| 57. | a negative [ positive ] opinion |
| 消极[积极]的意见
|
| 58. | positive [negative] factor |
| 积极[消极]因素
|
| 59. | positive feedback |
| （电）正反馈；积极反馈
|
| 60. | a negative [ positive ] film |
| (照片的)负片[正片]
|