Subcontracting, which is common both in farming and in the construction business, makes it difficult to punish companies for employing dodgy workers.

工程分包在农业及建筑业中是很常见的，这使得处罚那些雇用非法工人的公司变得很困难。

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In the Third World, where two out of three people still live by farming, food shortages and malnutrition are common.

在第三世界国家里，三分之二人口仍然依靠农业生存，食物短缺和营养不良十分普遍。

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Shifting cultivation is a common type of farming in many tropical countries.

轮作耕种是许多热带国家常见的农场经营方式。

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For example, tetracycline, which is used to treat respiratory infections, is also common in farming.

CNN: FIGHTING SUPERBUGS

The prince, referring to changes in farming with the reform of the Common Agricultural Policy, said the emphasis would be on quality, not quantity.

BBC: NEWS | UK | Wales | Mid | Prince urges school cooking lessons

In an effort to stick to its locals-know-best philosophy, sometimes Spark even funds projects that it has misgivings about, like a potato cultivation effort in the northern Rwandan village of Nyabageni, where a group of 80 families wanted to use insecticides instead of organic farming methods (chemical insecticides are common in Rwanda, says Lesh).

FORBES: Saving the World on a Shoestring: Spark MicroGrants