As is well known, drug costs have already declined dramatically.

总所周知，药品费用已经急剧下降。

youdao

The incidence of childhood diarrhoea declined dramatically between 2005 and 2006, irrespective of water source.

2005年到2006年期间，不管水源如何，儿童患有腹泻的发生率都有大幅度的降低。

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The cost of wind has declined dramatically in the last decade, and if in five years we can accelerate the cost reduction of solar power, we will have made a huge impact.

风力发电的成本过去十年来已经大幅度下降了，如果我们能在五年内使太阳能发电的成本加速下降的话，我们就会产生重大的影响。

youdao

The pace of job losses has declined dramatically in the last year, but nearly 15 million Americans are still out of work.

VOA: standard.2010.03.02

The broader measure of Retail Sales showed a contraction of 0.5% and Import Prices declined dramatically by 1.3%.

FORBES: Euro And Pound Break Through At Dollar's Expense

From the late 1940s through the late 1970s, when global temperatures cooled, rainfall in the Sahel declined dramatically.

FORBES: Despite What You Hear, Global Warming Is Still Benefiting Africa

The number of hijackings has declined dramatically, thanks to international maritime patrols and the arming of guards on ships.

ECONOMIST: Somalia��s future