单词
efficient
读音
ɪˈfɪʃnt
美式
英式
词根
Efficient 来自于拉丁词汇 efficere，意为 "完成"。同样源自此词根的单词还有 efficacy (效果，功效)，effect (效果，结果) 等。
释义
adj. 有效率的；有能力的；生效的 [ 比较级 more efficient 最高级 most efficient ]
例句
The service at the hotel is efficient and unobtrusive.
那旅馆的服务工作有效率而不夸张。
Graphite is a highly efficient conductor of electricity.
石墨是一种高效的电导体。
Computers are very efficient at manipulating information.
计算机在处理信息方面效率极高。
The service at the hotel is efficient and unobtrusive.
那旅馆的服务工作有效率而不夸张。
Graphite is a highly efficient conductor of electricity.
石墨是一种高效的电导体。
Computers are very efficient at manipulating information.
计算机在处理信息方面效率极高。
强化记忆
你可以把 efficient 与 effectiveness 这两个词组合起来记，二者都指的是能力，但前者强调的是速度和资源的使用，后者强调的是产生期望效果的能力。Efficient 这个词在 14世纪进入英文词汇，原意为 "产生效果的"。到了18世纪，这个词汇的意义扩大，开始用于形容能够有效地产生期望结果的人或事。
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where affordable,efficient,nontoxic air-conditioning and refrigerators run on clean energy,
these are tremendous sources of resilience and strength.They aren't efficient,but they give us limitless capacity
"They're too busy.""It's not efficient."Who, I wondered, is going to give them
Criminal leaders can cooperate over long distances,build efficient logisticsand hide their wealth across many jurisdictions.
But by using scientific consensus to guide policy,adopting efficient technology,and being unafraid to impose reasonable costs for pollution,
所属分类
大学,出国,高中,专升本-自考,专四专八,程序员,其他
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