| efficiency | |
| 级别 | 第5级 |
| 音标 | [ ɪˈfɪʃnsi ] |
| 解释 | n.效率，效能，功效 |
| 英英释义 | when someone or something uses time and energy well, without wasting any |
| 发音 |  |
| 例句 |
1. We were most impressed with your efficiency. 你的效率给我们留下很深刻的印象。 2. Our goal is to achieve the maximum of efficiency. 我们的目标是取得最高的效率。 |
