Researchers took a group of teenagers who had never smoked and for one year tracked whether they took up smoking and how their mental health changed.

研究人员找来一组从不吸烟的青少年，用一年的时间追踪他们是否开始吸烟以及他们的心理健康如何变化。

youdao

She gave up smoking for the sake of her health.

为保持身体健康，她戒了烟。

《牛津词典》

Bad habits such as smoking, staying up late and sitting for a long time can damage people's health.

诸如吸烟、熬夜和久坐等坏习惯会破坏人的健康。

youdao

"I picked up a Reader's Digest, and there I read that for $100 million the World Health Organization had eradicated small pox."

VOA: standard.2010.08.02

And it just tears me up to see the solution that health care is expensive, so let's have somebody else pay for it."

VOA: standard.2010.03.25

Mindful that political momentum appears to be slipping, President Obama has stepped up his efforts to win support for health care reform in recent weeks with a series of campaign style events around the country.

VOA: standard.2009.07.31

They had health insurance through the COBRA law, which lets a fired worker continue in his or her former health plan for up to 18 months.

ECONOMIST: Poverty looms for the long-term unemployed

Dr Purcell explained that patients could be detained in hospital under the Mental Health Act for up to 28 days - a Section 2 order - or up to six months under a Section 3.

BBC: Tenerife beheading suspect 'needed after-care'

On this issue of mandates, those who don't, whether it's 10 million or 15 million, those who could afford it but don't wind up buying health insurance for one reason or another, they wind up getting sick, they go to an emergency room, all of us wind up paying for their health care.

CNN: Transcript of Thursday's Democratic presidential debate