doing something in a good, careful and complete way with no waste of time, money or energy效率高的；有功效的- a highly efficient worker高效率的工人
- efficient heating equipment效能好的供暖设备
- more efficient use of energy更有效地利用能源
- fuel-efficient cars (= that do not use much fuel)节能汽车
- We offer a fast, friendly and efficient service.我们提供快速，友好和高效的服务。
- This is simply the most efficient way to do it.这只是最有效的方法。
- We must meet members' needs in the most efficient and effective ways possible.我们必须以最有效的方式满足会员的需求。
- efficient at something 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。🔊🔊
- efficient at something These magnificent animals were remarkably efficient at survival.这些宏伟的动物在存活方面非常有效。
- efficient in something Modern water boilers are highly efficient in fuel use.现代的热水锅炉在燃料使用方面非常高效。
- efficient in doing something He was ruthlessly efficient in acquiring estates.他在收购房地产方面雷厉风行。
opposite inefficient see also cost-efficientExtra Examples- She was helpful, quietly efficient and tactful.她乐于助人，话不多，但能干且老练。
- Which software is the most efficient at processing the data?哪个软件处理数据的效率最高？
- The heating system is very efficient in its use of of fuel.加热系统在使用燃料方面非常有效。
- The procedure is not fully efficient: improvements could be made.这种方法并未达到最高效率：还可以改进。
- Their equipment was not as efficient at finding gold as today's machinery.在探寻金矿方面，他们的设备不如现在的机器高效。
- Efficient teachers minimize the amount of paperwork they have to do.高效的老师将他们要做的文书工作减至最少。
- Farmers need to market their milk in an efficient, cost-effective manner.农民需要以高效，经济的方式销售牛奶。
- It's an incredibly efficient system.这一系统效率极高。
- More efficient use of energy resources is vital.更加有效地利用能源非常重要。
- The more efficient firms have lower costs.效率较高的公司成本较低。
- Farms with large land size are more efficient than farms with small land size.土地面积大的农场比土地面积小的农场效率更高。
- The organization seems pretty efficient to me.该组织对我来说似乎非常有效。
- Tax breaks make it efficient for business owners to own their premises.减税措施使企业所有者拥有房屋的效率提高。
- How can we make agriculture more economically efficient?我们如何才能提高农业的经济效率？
Topics Personal qualitiesb2Oxford Collocations DictionaryverbsadverbprepositionSee full entry Word Originlate Middle English (in the sense ‘making, causing’): from Latin efficient- ‘accomplishing’, from the verb efficere ‘accomplish’, from ex- ‘out, thoroughly’ + facere ‘do, make’. The current sense dates from the late 18th cent.