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TOEFL IELTS BNC: 1007 COCA: 1133
effective
ɪfektɪv ɛˈfɛktɪv ɪˈfɛktɪv iˈfɛktɪv əˈfɛktɪv
1 ADJ-GRADED 有效的;能产生预期效果的 Something that is effective works well and produces the results that were intended. 有效的;能产生预期效果的

  • The project looks at how we could be more effective in encouraging students to enter teacher training. [+ in]

    该项目着眼于我们如何能够更加有效地鼓励学生参与教师培训。

  • Simple antibiotics are effective against this organism. [+ against]

    一般的抗生素能够有效对抗这种微生物。

  • ...an effective public transport system.

    有效运转的公共交通系统

SYN efficient, successful, useful, active
effectively

  • ...the team roles which you believe to be necessary for the team to function effectively.

    你认为要使团队有效运作所必需的团队作用

  • Services need to be more effectively organised than they are at present.

    服务的管理应该比现在更加有效。

effectiveness

  • ...the effectiveness of computers as an educational tool.

    计算机作为教育工具的有效性

2 ADJ [ADJ n] 实际的;事实上的 Effective means having a particular role or result in practice, though not officially or in theory. 实际的;事实上的

  • They have had effective control of the area since the security forces left.

    自从安全部队撤离后，他们实际上控制了该地区。

  • ...a restructuring that would have resulted in an effective increase on one of their most popular excursion fares.

    原本会使他们最热门的一条短途旅游线路的费用出现实质性上涨的调整

SYN virtual, essential, practical, implied
3 ADJ [verb-link ADJ] （法律、协议等）生效的，起作用的 When something such as a law or an agreement becomes effective, it begins officially to apply or be valid. （法律、协议等）生效的，起作用的

  • The new rules will become effective in the next few days.

    新规定将在几天后生效。

SYN in operation, official, current, legal
UsageWord Partnership
Usageeffective and efficient
Effective and efficient are often confused. If you are effective, you get the job done properly; if you are efficient, you get the job done quickly and easily: Doing research at the library can be effective, but using the Internet is often more efficient.
Word PartnershipUse effective with:
N.

effective means, effective method, effective treatment, effective use 1

ADV.

highly effective 1

effective immediately 3

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