Fourth, even as we clean up past mistakes, G-20 leaders rightfully expect an overhaul of the financial regulatory and supervisory system.

第四，20国集团领导人在纠正以往错误的同时，还有理由期待对金融监管和监督制度进行全面整改。

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"As we clean up the aerosols, which we really want to do for public health reasons, we are going to be perhaps causing ourselves more trouble in terms of the climate situation," Mahowald says.

“我们是本着为公共卫生谋福利才清理悬浮微粒的，但就气候状况而言，可能将自己置于更麻烦的境地。”马霍瓦尔德说道。

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"We say,find more American energy and use less--energy that is as clean as possible, as reliable as possible, and at as low a cost as possible.

VOA: standard.2009.04.25

As we clean up the destruction from Tropical Storm Irene consider the recession, the debt debacle, the AA downgrade and the decline of the stock market.

FORBES: Hurricane Irene Beats Up The Northeast And The Fragile U.S. Economy

Even with the adjustment the calendar year transitions are not as clean as we would like.

FORBES: U.S. Housing Inventory Update

Only then can we accept further development of these resources as we transition to a clean energy economy.

WHITEHOUSE: A Full and Vigorous Accounting of the BP Oil Spill