effective


adj. 有效的,起作用的;实际的,实在的;给人深刻印象

CET4词汇TEM4词汇IELTS词汇CET6词汇TOEFL词汇考研词汇

中文词源

effective 有效的

来自effect, 效果。

英文词源

effective (adj.)
late 14c., "serving to effect the intended purpose," from Old French effectif, from Latin effectivus "productive, effective," from effect-, stem of efficere (see effect (n.)). Of military forces, meaning "fit for action or duty" is from 1680s.

中文解释

1. ef- "out" + fect-. 在这里取 out 的引申义:完成、结束(finish, end)之意。2. meaning: 事情做完了,事情做结束了. => work out, accomplish.3. => 引申为:事情做完、做结束后的结果、效果、作用、影响等。4. 做动词就表示:生效、完成、实现、达到、造成等含义。5. effect + -ive.

实用例句

1. Condoms are an effective method of birth control if used with care.
如果使用得当,避孕套是很有效的避孕手段。
来自柯林斯例句
2. Light colours provide an effective backdrop for pictures or a mirror.
浅色是挂放图画或镜子很有效果的衬托。
来自柯林斯例句
3. Women are sometimes seen to be less effective as managers.
女性有时被认为不善于管理。
来自柯林斯例句
4. The initial image projected was of a caring, effective president.
他最初表现出的是一个充满爱心、办事有效的总统形象。
来自柯林斯例句
5. The bank must be run in a cost-effective way.
银行的经营必须追求成本效益。
来自柯林斯例句

热门英语单词

考试词汇

使用频率

星级词汇

分类标签