Vehicle crashes are the number one killer of American teenagers, claiming nearly 7,000 lives each year.

汽车碰撞是美国青少年的头号杀手，每年杀死7000多条生命。

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Diseases of the heart and arteries end many seafaring careers early - and are the number one killer of seafarers while at sea.

心脏和动脉疾病过早地结束了许多人的航海生涯，而且也是海员们的头号杀手。

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There are plenty of ways to sabotage your personal goals, dreams and desires. Procrastination, however, is the number one killer.

很多因素导致你无法到达或实现既定的目标和理想，其中拖拉是最大的罪魁祸首。

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It causes debilitating fevers and is the number one killer of children in Africa.

VOA: standard.2010.04.23

The report says the common housecat is the number-one killer of fledgling gray catbirds near America's capital.

VOA: special.2011.05.24

It is the number one cancer killer of women in poor countries.

VOA: special.2009.04.01

You want to know the number one killer of all small to medium size businesses?

FORBES: 7 Deadly Roadblocks for Startup Entrepreneurs

Heart disease, as the number one killer in the country, is expensive to treat, though not the most expensive.

FORBES: The 10 Most Expensive Common Medical Conditions

With that status as the number one killer in the country, cardiovascular disease is a big concern for many of us.

NPR: Varied Responses to Cholesterol Worries