With the new rules taking effect within two years, tour operators are promoting 2010 as the last year to visit Antarctica, while, at the same time, procuring lighter vessels that would be permitted.

由于新的限制条令将会在两年内实行，行程组织人员推销说2010将会是最后一年可以进入南极洲。 然而，于此同时，更轻型的旅游船只将会得到许可进入。

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Patton says in the last five years, there has been an effort to clean up the air within the two ports, and they are not the only ones.

帕顿说，过去五年来，他们一直努力清洁这两座港口的空气。

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More than 1.9 billion people, representing 28% of the world's population, live in the 23 countries that have implemented at least one strong anti-tobacco mass media campaign within the last two years.

23个国家在过去两年中至少开展了一项强有力的反烟大众媒体宣传运动，有19亿多人在这些国家生活，占到世界人口的28%。

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It is estimated that 10% of Brasileia's 20, 000-strong population are immigrants who arrived within the last two years.

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Staff and contributors may not write about a company they have worked for in any capacity within the last two years.

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Within the last two years alone, she ranked first among members of Congress in raising money from the television, movie and music industries combined.

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