The first step to ensuring the safety of your food supply is keeping track of when you purchased and opened each item.

第一步，为确保安全，当您购买和和打开每个食品前，应对您的粮食供应是保持跟踪。

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Following Wednesday's online launch of the VR-01, Virgin Racing's 2010 campaign took another step forward on Thursday when the car completed its maiden track run.

继本周三维珍车队网上发布新车VR - 01之后，周四VR - 01在赛道上首次试跑。这是维珍车队为2010年赛季做的进一步准备。

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This is also the first step for keeping a life list to track how you grow as a birder.

这也是你开始写自己的鸟种记录来记录自己的鸟人成长记录的第一步。

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In her outstanding book on photographer Edward Muybridge, Rebecca Solnit recounts a death, during the first running of a passenger railroad in 1830, because a man could not step off the track in time from a long-seen locomotive going perhaps 30 miles an hour.

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Authorities will also step up efforts to track and control illegal income, including from government officials.

WSJ: China to Make State Firms Turn Over More Profits

Because eBay handles its own payment processing through subsidiary PayPal, the company can track each step of a sale.

FORBES: Magazine Article