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A change of leadership alone will not be enough.

仅仅更换领导将是不够的。

《柯林斯英汉双解大词典》

Governments are realizing that recycling may not be enough.

政府正在意识到回收可能还不够。

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If there is a large supply of seeds, then hand-operated presses may not be enough to support a business.

VOA: special.2009.09.29

And besides that, lest that not be enough to make sure everyone can succeed in a course like this, we have a very diligent teaching fellow who not only likes to scribe the courses lectures.

另外，为了让大家都能,学好这门课，我们有一个很勤奋的助教,他很乐意记录下课程教案。

哈佛公开课 - 计算机科学课程节选

What you really want-- a ruler may not be enough, but maybe it's enough.

你还需要什么,一把尺子也许还不够,但可能也足够了

耶鲁公开课 - 基础物理课程节选

Alone, that kind of soul-crushing disillusionment might not be enough to inspire lethal violence.

FORBES: I Went To College, Law School, And Grad School - Because I Wasn't Born Elite

Stimulating the production of antibodies--only one arm of the immune system--may not be enough.

FORBES: Outsmarting AIDS

But tweaks may not be enough to bring the Brazilians back into the fold.

ECONOMIST: Drugs and intellectual property