Where population is growing fastest, in sub-SaharanAfrica, emissions per person are only a few percent of what they are in theU.S.—so population control would have little effect on climate.

在撒哈拉沙漠以南非洲人口增长最快的地方，人均排放只是美国人均排放的百分之几——因此控制人口对气候没有多大影响。

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Not only would a modest rise have "very little or no effect" on employment, the letter said, it would be an important tool in fighting poverty.

信中讲到，适度地提高不但对受雇率有很小或者没有影响，而且它将是对付贫困的有力武器。

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As a whole, these schools only get little effect in conducting the course.

总体而言，这些学校实施这门课程的效果一般。

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Last year's rise in import duty only had a temporary impact on demand, and some analysts said the latest move would have little effect.

BBC: India raises gold import tax to tackle trade deficit