Use Proper Supplies: Every birder knows they need a good field guide and the right optics to see the birds, but summer birding requires some additional equipment.

利用合适的补给品：每个观鸟者都知道他们需要一个好的野外向导和准确的视觉来观察鸟，但夏季观鸟需要额外的装备。

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Even birders who opt for a field bag, binoculars and other birding supplies can find suitable options for low budgets.

甚至想要拥有自己的野营包、双筒望远镜和其他观鸟设备的观鸟者也能找到价格较低、合适的选择。

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The field of buying and shipping supplies has been transformed in the last decade or two.

在过去一二十年里，采购和运输行业已经开始转型。

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But some groups like Doctors Without Borders said patients in field hospitals were dying because of a lack of basic medical supplies like antibiotics.

VOA: special.2010.02.01

Boxes of mass trauma supplies, field dressings, medical sponges are being boxed up for storage, unneeded.

CNN: Melted boots, faded batteries: supply depot has it covered

The villagers mounted a 24-hour blockade to prevent the gypsies from bringing building supplies into the field (the courts later forced them to allow sewerage works).

ECONOMIST: Conflicts are growing between gypsies and residents

Rhodri Thomas, an analyst at Wood Mackenzie, an energy consultancy, says the geology of the Polish shale is similar to that of the Barnett Shale, a giant field in Texas that now supplies about 7% of America's gas.

ECONOMIST: The hunt for shale gas in Europe