Miz Gunnoe works with a coalition to organize neighborhood groups to fight environmentally harmful activities by coal companies.

VOA: special.2009.04.27

It's a common bacterium and most strains of E. Coli are not harmful to people, in fact, they provide us with some beneficial properties.

它是常见菌,且大多数种类的菌株对人类无害,实际上还给了我们颇多裨益

耶鲁公开课 - 生物医学工程探索课程节选

So if you could stop a tumor from being able to develop blood vessels you might be able to stop its growth at a stage where it's not harmful.

所以,如果我们能通过阻止血管的生成,来阻止肿瘤的发展,就可以在肿瘤还处于良性阶段时扼制它

耶鲁公开课 - 生物医学工程探索课程节选

Dr.Hope Ferdowsian, director of research policy at Physicians Committee for Responsible Medicine (PCRM), , says chimpanzees used for HIV and hepatitis research are anaesthetized with a dart gun before being subjected to harmful and invasive procedures.

VOA: standard.2010.02.16

Well, i mean a cockroach might be seen as being harmful because we consider them dirty, disgusting, revolting insects and we don't define insects as something we eat, at least in our culture.

蟑螂看起来可能是有害的,因为我们觉得它脏,恶心,是令人厌恶的害虫,我们不把害虫定义为食物,至少在我们的文化中是这样的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

His sculpture also makes a statement about the harmful effects that waste and pollution have on the environment.

VOA: special.2009.11.13

C.D.C. official Janet Collins says breathing secondhand smoke has immediate harmful effects on a person's heart-and-lung system.

VOA: special.2009.01.07

Experts say a continuing reduction in coral reef populations will have harmful effects for people worldwide.

VOA: special.2010.08.10

We will tell about a new way to recognize harmful minerals in rocks and soil.

VOA: special.2009.11.17

The aim is to stop what American officials call a "harmful" increase in tire imports.

VOA: special.2009.09.18

Recently,American researchers found harmful bacteria in a place most of us would never suspect.

VOA: special.2009.10.13

In many countries, it is possible to buy and use a special device that will warn when harmful levels of carbon monoxide are in the area.

VOA: special.2010.02.02

People should ask a health expert about drug combinations that could be harmful.

VOA: special.2009.07.21

People should ask a health professional about drug combinations that could be harmful.

VOA: special.2009.07.08

We also will tell about a newly-found hiding place for harmful bacteria.

VOA: special.2009.10.13

A natural reaction kills harmful organisms in the waste.

VOA: special.2010.03.15

Or perhaps the harmful substance is a medicine.

VOA: special.2010.08.17

But some doctors say the CT scan exposes patients unnecessarily to harmful radiation, as much radiation as a patient might receive from 400 chest x-rays.

VOA: standard.2010.04.07

Iron is a vital nutrient, but too much iron can be harmful.

VOA: standard.2010.08.05