This was observable through the reduction of levels of stress-associated hormones and normalization of the systemic stress metabolic signatures.

这一结果可以通过观察与压力相关联的激素和维持机体压力代谢的信号而获得。

youdao

The principal objective of vector control is the reduction of malaria morbidity and mortality by reducing the levels of transmission.

媒介控制的主要目标是通过降低传播水平来降低发病率和死亡率。

youdao

In America, where overall debt levels have fallen fastest, a lot of the reduction in household debt has been thanks to mortgage defaults and write-downs.

在总体债务水平下降最快的美国，家庭负债减少有很多是住房抵押贷款违约和价值减记的结果。

youdao

Many nations have pledged to reduce greenhouse gas emissions, but are falling short of the target reduction of 25 to 40 percent of 1990 levels.

VOA: standard.2009.09.28

He said the UK would take this into account as it sought to "manage" the reduction of troop levels to 5, 200.

BBC: UK troop reduction in Afghanistan 'in autumn'

Other critics have argued that even if the burning of fossil fuels is changing the planet's climate, the reduction of CO2 levels by the world's emerging nations is unrealistic, impractical and undesirable.

BBC: Science correspondent, BBC News

Mr. GEOFF MORRELL (Press Secretary, Pentagon): When I hear General Odierno, the head of the corps, talking about a reduction in overall levels of violence, and then I hear General Bergner provide the most up-to-date numbers on sectarian violence being down, I trust that.

NPR: Talking Points for the Petraeus Report