The river Lea flows into the Thames which flows into the North Sea.

利河流入泰晤士河，泰晤士河流入北海。

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The River Lea, which runs next to the park, is being cleaned and widened after years of neglect and contamination.

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The River Lea and several canals which wend their way through the park used to be badly polluted, he says.

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The Royal Docks is a stretch of land in east London running from Stratford down the River Lea to the Thames, and is already home to the ExCeL exhibition and convention centre and London City Airport.

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