The analysis shows a direct link between the number of cigarettes smoked in a lifetime and the number of mutations in tumour DNA.

研究显示，人一生中吸烟的总数量和肿瘤DNA变异的数量之间存在直接关系。

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Julie says we can't put a number on human life for the purpose of a cost-benefit analysis.

朱莉认为，我们不该为了成本效益分析,给人的生命标价。

耶鲁公开课 - 公正课程节选

Robinson's testimony offers a seminal analysis of a number of issues now looming on the U.S.-Soviet economic agenda.

CENTERFORSECURITYPOLICY: Center For Security Policy

Dunnhumby, a data-analysis firm, uses algorithms to crunch data on customer behaviour for a number of clients.

ECONOMIST: Algorithms

Ms Rosewell, who runs an economic analysis partnership and holds a number of non-executive directorships, believes it would not take much longer to build than a third runway at Heathrow - one of the other options under consideration.

BBC: Kent island airport 'best solution' to meet flight demand