While at present, the forest ecosystem, which is the biggest and the most important ecosystem in the land ecosystem, is being studied mostly.

而目前研究最多的是陆地生态系统中面积最大最重要的森林生态系统。

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While at present, on the background of under-education and deficiency in the human capital, over-education occurred on graduates in our country.

而现阶段，我国在整体教育不足、人力资源匮乏的背景下，大学毕业生就业出现了局部过度教育现象。

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Environment of a market place plays an important role in attracting customers, while at present many market places have much room for improvement.

商场环境的优劣对于顾客的吸引力有着十分重要的作用，但是目前许多商场的室内环境还有许多不尽人意的地方。

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Under the proposed law, land can be acquired if 80% approve it, while at present, there is no clear rules on this.

WSJ: Land Bill Likely to Get Parliament Nod

While the cause is at present unclear, some users are pointing fingers at a problem with email accounts, and that deleting and recreating the accounts solves the problem.

FORBES: Some iPhone Users Complaining Of iOS 6.1 Battery Drain Problem

European carriers can only own 25% of US airlines at present, while US carriers can take 49.9% stakes in their European competitors.

BBC: Second open skies deal signed