A main root of the world financial crisis is the weak housing market in the United States.

这次世界范围的金融危机一个最基本的根源是美国房地产市场的疲软。

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All the main root causes of these diseases lie outside the purview of ministries of health. Multisectoral actions are imperative.

这些疾病的所有主要根源均超出卫生部的管辖范围，因此急需采取多部门行动。

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The soil moisture refers to the soil water status in the main root system activity layer of crops.

土壤墒情是指农作物主要根系活动层内的土壤水分状况。

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If the main root has "eyes, " the small round nubs from which a new stem emerges, make sure each baby you cut off has one of these.

WSJ: In the Garden, Divide and Multiply: Weekend Gardener

Mr Hardcastle, of consultants Kellogg Brown and Root, said the main recommendation was for an "area-wide" charging scheme which would use satellite technology to monitor the journeys of all motorists and charge them per mile.

BBC: Tolls 'would curb M25 traffic jams'

After the next election, all main parties have committed to holding a root-and-branch review of all military services.

BBC: New army head in pledge to troops