When some sea otter populations off the Alaskan coast started rapidly declining a few years ago, it caused much concern because sea otters play an important ecological role in the coastal ecosystem.

几年前，阿拉斯加海岸的海獭数量急剧减少。由于海獭对于维持海岸沿线生态平衡有非常重要的作用，所以其数量下降引起了广泛的关注。

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Currently many fish populations in Trias waters are declining, a situation blamed on pollution.

当前Tria水域的很多种鱼类数量都在下降，这种现象被认为是污染造成的。

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President Medvedev says Russia will devote considerable resources to develop and purchase new weapons, despite a tight national budget affected by the declining price of Russian oil exports.

VOA: standard.2009.03.20

He was in the hospital, running a high fever and declining quickly.

VOA: standard.2010.01.12

Health Affairs editor Susan Dentzer says the rapid advance of information technology, along with declining prices, presents what she calls a spectacular opportunity in poor and middle-income nations.

VOA: standard.2010.02.24

We would expect to see such subsidies declining a bit as various Android etc phones come up to the iPhone standard.

FORBES: Why Apple's Profits Might Start Declining Dramatically

Although the net-long for speculators has rebounded from the lows set a few weeks ago, Citigroup said the long exposure remains under a still-declining a 10-week average.

FORBES: FOCUS: Speculators Cut Bullish Gold, Silver Positions -- CFTC Data

The National Association of Realtors expects sales of existing homes to remain essentially flat, declining a slight 0.6 percent from 6.48 million in 2006 to 6.44 million in 2007.

CNN: Spring into home-selling action