For various reasons, the spread of no-can-do limits has swept aside the optimism with which Americans met the initial challenges of the space age.

由于种种原因，“不可能”这种自限的蔓延，已将美国人迎接早期的太空挑战的乐观精神扫地出门。

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A new map of 151 countries has revealed exactly which parts of the globe deliver long and happy lives for their citizens, within the environmental limits of the planet.

在全球环境的限制下，世界上151个国家哪里为市民提供的生活最为幸福长乐呢——就由这张地图来告诉你。

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The noise limits for various types of motor vehicles have been reduced considerably, which has promoted application and development of noise abatement technology.

这显著促进了汽车降噪技术和测量分析技术不断的深入研究和应用。

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Labour, which has launched a consultation on the case for statutory limits on the amount of sugar and salt in children's food, said the government was "doing nothing" to tackle the obesity crisis among children.

BBC: Poorer children more likely to be obese, says Anna Soubry

The Berlin-based non-profit Verkehrshclub Deutschland (Traffic Club Germany) has also repeatedly called for legal limits, which the organisation says could reduce traffic-related deaths and injuries each year by the hundreds.

BBC: Roads without limits

The Republic of Ireland has voted on whether to ratify the EU's Fiscal Pact, which sets strict limits for countries' budget deficits.

BBC: Ireland votes on EU fiscal pact