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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Demand for social media skills in the corporate world has outstripped the supply of candidates with training in communications and the analytical skills to track the effectiveness of a media campaign.

企业对于拥有社交媒体技能的人才的需求，已经超过了受过传播培训、会用分析方法追踪媒体活动有效性的人才的供给。

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If you sell supply chain management solutions and she visits your web site, you can track where she goes and get a sense of her interests.

如果你是提供供应链管理方案的销售商，而这位经理恰好访问了你的网站，你可以跟踪她的网络行踪，分析了解她的偏好。

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The supply-chain track, in particular, has generated enormous interest in the business community, where logistics has a growing influence on the bottom line.

ECONOMIST: News from the schools, April 2006

Big Oil's arguments to the contrary ignore the political track record on increasing domestic supply while underestimating the harm that LOST will likely inflict upon the industry, with the effect of raising gas prices, not lowering them.

CENTERFORSECURITYPOLICY: LOST oil prophets

The firm said it continuously monitors track, signalling, overhead power supply and other equipment for ageing and degradation.

BBC: England