Professor Ervin says this means that some farmers are again using the more toxic herbicides to control weeds.

VOA: special.2010.04.27

Metallic sodium is toxic to humans.

金属钠有毒性。

麻省理工公开课 - 固态化学导论课程节选

Chlorine gas, toxic to humans.

氯气有毒。

麻省理工公开课 - 固态化学导论课程节选

Ervin says that means some farmers have returned to using soil-disturbing tillage or more toxic herbicides to control weeds.

VOA: standard.2010.04.15

So,Once they are lost in response to a toxic sound or to an antibiotic it cannot be regenerated by natural means.

一旦因噪音或抗生素遭受损失,就难以再生。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

When a baby is put face down in a bed, it begins to re-breathe carbon dioxide, which is toxic.

VOA: standard.2010.02.08

And in terms of thinking about it for organic chemistry or if you're interested in thinking about the mechanism maybe by which it is toxic, a first step would be to draw its Lewis structure.

而为了在有机化学中思考它,或者如果你对它,有毒的机理感兴趣的话，第一步要做的应该就是画出它的路易斯结构。

麻省理工公开课 - 化学原理课程节选

Wolfenbarger says insect-resistant GE crops have fewer adverse effects because farmers don't have to spray as many toxic insecticides.

VOA: standard.2010.04.15

However, their biological relatives in Mexico would presumably have that same risk, but it would never be manifested if they're not exposed to what some have called a toxic food and physical activity environment.

而且,他们远在墨西哥的血缘亲属,可能也面临同样风险,但他们面临着所谓的有毒食物和活动环境,这个说法就不会得到证实

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And farmers planting glyphosate-resistant crops can use just one less-toxic herbicide to control weeds.

VOA: standard.2010.04.15

In fact, that's their preferred state is suspended in a fluid where nutrients are widely available to them, and where they can swim from one spot to another in order to get the nutrients they need, or in order to run away from toxic compounds.

事实上,细菌更喜欢生活在,营养丰富易得的悬浮液中,它们可以从一个点游动到另一点,以获取所需营养,或逃离有毒物质

耶鲁公开课 - 生物医学工程探索课程节选

Geithner said government and private investors will work together to purchase bad loans from banks, so-called "toxic assets", so the banks can resume lending and get the economy going again.

VOA: standard.2009.05.20

Mr.Fillon expressed confidence in U.S.Treasury Secretary Timothy Geithner's newest initiative to help stabilize the banking system by providing guarantees and low-interest loans to investors willing to purchase toxic assets from banks.

VOA: standard.2009.03.24

With his mind electronically linked to his Avatar body, Jake not only can walk again and survive in the toxic atmosphere of Pandora, he can also make direct contact with the Na'vi.

VOA: standard.2009.12.19

Most of the data comes from the industrialized world. Not surprisingly, burning fossil fuels for transportation and electrical generation top the list for their contributions to climate change, acid rain and toxic pollution.

VOA: standard.2010.06.04

Many banks have been reluctant to loan money because they are unsure if they will need their cash reserves to cover the cost of billions of dollars in questionable loans, which are frequently referred to as toxic assets.

VOA: standard.2009.03.23

Chan says governments around the world are far more prepared to deal with a pandemic now than they were five years ago when the far more lethal She adds it is fortunate the current because the world is not prepared to deal with such a toxic and deadly virus.

VOA: standard.2009.12.29