| 单词 | efficient |
| 释义 | 🔑 ef·fi·cientBrE /ɪˈfɪʃnt/ NAmE /ɪˈfɪʃnt/ adjective doing sth well and thoroughly with no waste of time , money or energy 效率高的；有功效的◆ an efficient secretary 效率高的秘书◆ efficient heating equipment 效能好的供暖设备◆ the efficient use of energy 能源的有效利用◆ As we get older , our bodies become less efficient at burning up calories . 随着一天天衰老，我们的身体消耗热量的功能逐渐减弱。◆ fuel -efficient cars (= that do not use much fuel )节能汽车OPP inefficient▸ ef·fi·cient·ly🔑 BrE /ɪˈfɪʃntli/ NAmE /ɪˈfɪʃntli/ adverb ◆ a very efficiently organized event 组织效率极高的活动 |
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