| 单词 | proven effectiveness |
| 释义 | proven effectiveness All have been chosen because they channel precious funds to vital projects with proven effectiveness and a minimum of waste. Times, Sunday Times Other activities covered include promoting more widespread use of crash avoidance technologies with proven effectiveness, such as electronic stability control and anti-lock braking systems. Retrieved from Wikipedia CC BY-SA 3.0 Animal trainers assert that clicker training has proven effectiveness and scientific research to back it. Retrieved from Wikipedia CC BY-SA 3.0 |
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