Overpopulation: Many poor nations are extremely crowded, especially in urban areas, without the infrastructure required to feed, clothe and house these rapidly growing populations.

人口过剩：许多贫穷国家都极其拥挤，特别是在城市里，没有足够的基础设施为快速增长的人口提供食物、衣服和住房。

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That makes it extremely maneuverable in tight, crowded quarters.

那使得它在紧迫又拥挤的小区城市中，极端容易操作。

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We found a space in the extremely crowded economy lot and took the slow shuttle to the airport.

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At the moment some peak time services have empty seats on them while the first off-peak train is extremely over-crowded as passengers wait for the cheaper fares.

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Old Navy (GPS) had extremely long lines and a crowded store, with some deep discounting going on.

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