Age is one of the major risk factors for drowning.

年龄是溺水的主要危险因素之一。

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Being overweight or not acclimated to the heat are major risk factors.

超重或者不适应炎热是主要的风险因素。

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For instance, the Rational Unified Process requires that major risk factors be identified and tracked by architectural impact.

例如，Rational统一过程要求根据体系结构的影响来确定和跟踪主要风险因素。

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Other major risk factors for periodontal disease include genito-urinary infections, smoking and excessive alcohol drinking.

BBC: Gum disease 'risks unborn babies'

More must be done to maintain momentum and reduce the major risk factors - obesity, smoking, poor diet and lack of physical activity.

BBC: More staff are needed to carry out heart tests

Mokdad speculated that increases in the prevalence of major risk factors for chronic diseases especially obesity and smoking among women were probable, though not definitive, causes of lower life expectancy.

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