Doctor Terry Pechacek at the C. D. C. says the findings should persuade every country that smoking in enclosed Spaces is very dangerous to nonsmokers.

疾控中心的Terry Pechacek博士说，这些研究结果应该提醒每一个国家，在密闭环境中吸烟对于不吸烟者来说是非常危险的。

youdao

In 2008, the F. D. A. advised that such medications not be used in children under 2, to whom they can be dangerous.

2008年，美国食品及药物检验局通告称这样的药物由于危险性不能对2岁以下的小孩使用。

youdao

B. They both live in freshwater streams. C. They are usually both dangerous to people. D. They both live in northern Australia.

文章第二段到第四段讲了咸水鳄和淡水鳄的异同，它们的共同点是都生活在澳大利亚北部。

youdao

Doctor Terry Pechacek at the C.D.C. says the findings should persuade every country that smoking in enclosed spaces is very dangerous to nonsmokers.

VOA: special.2009.01.07

Democracy, the slaveholding class of the South came to see small d--as a dangerous thing.

民主,被南方蓄奴派视为,心腹大患

耶鲁公开课 - 美国内战与重建课程节选

"D'Arcy is a dangerous man," he said.

VOA: special.2009.12.26

"I'd say for the average person who grew up in towns, you'd be in a dangerous situation, " he said.

CNN: 'Crazy old' Tennessee man waits out the flooding

"If you had no high resolution images and you tried to go someplace smooth from Viking images, you'd probably land someplace pretty rough and dangerous from a landing standpoint, " he said.

CNN: High-resolution images help prepare for Mars landing

Mostly it was a matter of customers with nondrinking spouses or who wanted to drink a modest amount, said Mr. Visser, though he recalled one man who confessed it was simply "too dangerous" to buy a full bottle because he'd end up drinking the whole thing himself.

WSJ: Half-Bottles of Wine: Half Full or Half Empty? | On Wine by Lettie Teague