The event will be part of a weeklong series of exhibits and activities on the National Mall marking the 40th anniversary of Earth Day.

这一聚会是在国家广场举行的“地球日40周年庆典”为期一周的展览和活动的一部分。

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National standard of "sign and marking of special lane for Olympic vehicles" provides some regulations of sign and marking of special lane for 2008 Beijing Olympic vehicles.

国标《奥林匹克专用车道标志和标线》给出了奥林匹克专用车道标志和标线的一般规定，适用于2008年北京奥林匹克运动会期间奥林匹克专用车道上的标志和标线。

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The public environment consciousness is the important marking that reflects a social morals level and the national civilization degree.

公众的环境意识是反映一个社会道德水准和民族文明程度的重要标志。

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Relations soured again after Viktor Orban, the prime minister, gave a blistering speech on March 15th, a national holiday marking the failed 1848 revolution.

ECONOMIST: Hungary and Europe

Saturday is regarded by some as the island's national day, marking the adoption of the island's constitution in the 18th Century.

BBC: Man killed and homes bombed in fresh Corsica violence

The national museum is marking the beginning of the free entry era by the symbolic release of balloons at its main site in Cathays Park, Cardiff.

BBC: Museums launch free entry