"When we plotted the circuits in the brain against their childhood lead blood lead levels, we found that those with a higher blood lead measurement had less activity in the part of the brain normally left to do the attention tasks,"

VOA: standard.2009.12.19

Eating a high fat diet but one that's low in cholesterol can still potentially lead to high cholesterol levels.

食用高脂但低胆固醇的食物,仍可导致胆固醇含量偏高

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

All these components ultimately lead to higher levels of success.

所有这些因素最终导致更高层次的成功。

哈佛公开课 - 幸福课课程节选

More than one thousand children living nearby were reported to have high levels of lead in their blood.

VOA: special.2009.08.31

The team found levels of lead as high as thirty-two thousand parts per million in tests on some paint samples from Ecuador.

VOA: special.2009.08.31

The study found that almost three-fourths of the brands had dangerously high levels of lead.

VOA: special.2009.08.31

It found that the majority of new enamel paints from China, India and Malaysia contained lead at levels of at least five thousand parts per million.

VOA: special.2009.08.31

This doctor believes that low glucose levels in the blood lead to hallucinations.

VOA: special.2010.02.24

Scientists warn climate change will lead to rising sea levels, more devastating floods and hurricanes, longer lasting droughts and other extreme weather phenomena.

VOA: standard.2009.08.31