Where a country scores well on these criteria, foreign assistance can be highly effective.

一个国家在这个领域表现好的话，国际社会的援助就能被有效利用。

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Some strategies can be more effective or less effective depending on personality characteristics you have.

有些策略因为您的性格特点而变得更加有效或者无效。

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We hope this combined treatment is effective, and it also reflects our judgment that no single ingredient is particularly effective and can cure the disease on its own.

我们希望这个综合治疗是有效果的，同时也反映了我们不单独强调某一味药特别有效或者单独就能起到足够作用的看法。

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In many ways you can look at most of our experiences, psychological effective experiences on a continuum, where some of them fall below the zero, the negative experiences or the painful experiences and the positive or the pleasurable experiences between the zero and the positive.

可以从多方面来看我们的经验，在心理连续谱上看有效心理经验，有时候会跌倒0以下，不愉快或痛苦的经历,积极或愉快的经历,分别在0与正值之间。

哈佛公开课 - 幸福课课程节选

Mtayari, a junior at Southwest DeKalb High School, said he believes the old protest methods of marches and sit-ins can be effective weapons on new battlefields.

CNN: Voices of change

One of the most common arguments you hear from Gonzales' critics is that he can't be effective on the job while this cloud hangs overhead.

CNN: Navarrette: Will Gonzales get a fair hearing?

"Our providers can just focus on providing the most effective and efficient care, and not on how their images are going to be stored and whether they can retrieve them, " Mr. Yee says.

WSJ: Hospitals Struggle to Store Images From MRIs, CT Scans and More