Say your goal is to lose weight by dieting and cutting off sweets.

比如说，你的目标是通过节食和不吃甜食来减肥。

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The change separated populations of insects now living along opposite shore, completely cutting off gene flow between them.

这个变化使当地的昆虫被分隔开来，现在分居于河的两岸，彼此的基因流动已被完全截断。

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Cutting off the flow increases the pressure inside the well.

切断石油流通会增加井内的压力。

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EU Finance Commissioner Olli Rehn made the call after a first round of talks with Greek officials amid growing market expectations of a trade-off between new deficit cutting steps and practical EU support for Greek borrowing.

VOA: standard.2010.03.01

Beijing's cutting-off of aid (per the terms of the accords) and a 1992 U.N. sanction against Khmer Rouge exports put a squeeze on the group's revenues.

CNN: BEYOND POL POT

Mr Obama, for his part, was right to press for more funds to counter what would otherwise have been a contractionary cutting-off of unemployment benefits and tax breaks for the poorest.

ECONOMIST: Taxes, benefits and the deficit

Failure of a test usually means an instant short spell in jail, and it is hoped that such a dramatic sentence will shock people out of re-offending - thereby reducing long-term prison numbers and cutting off alcohol-related crime at the source.

BBC: How one US state deals with alcohol-related crime