Maintaining the current level of the renminbi also means the central bank cannot easily push up interest rates - a move countries normally use to battle inflation.

保持人民币目前的价格水平同时也意味着央行将不能够轻易地提高利率，这一其它国家常用的手段，来对抗通货膨胀。

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While improved CDRs have a dramatic short-term effect on TB incidence, maintaining those rates, even at current target levels, may not reduce long-term incidence by more than 1–2% per year.

提高CDR对结核发病率虽可起到显著的短期作用，保持病例检出率水平甚至将病例检出率保持在当前目标水平，也未必能使长期的发病率每年降低1%–2%。

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Private planes, categorized under general aviation, have far higher accident rates than commercial aviation, which has tighter U.S. standards for maintaining and flying planes.

属 于专用航空范畴的私人飞机失事的几率比商业航空高出很多。

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Yet the Fed remains concerned about sluggish growth and the weak labor market and is committed to maintaining rates close to zero.

FORBES: Fed's Brave Steps Contrast with ECB's Inertia

The government also reduced tax rates for small enterprises while maintaining tax rates for larger corporations, including state-owned enterprises.

FORBES: What Obama Needs to Learn From China About Taxes

That deal raised tax rates on top income earners while maintaining lower rates for everyone else.

CNN: Debate on spending cuts seeks blame, not solutions