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The English Channel is an arm of the Atlantic Ocean that separates Great Britain from northern France, and joins the North Sea to the Atlantic. It is about 560 km long and varies in width from 240 km at its widest, to only 34 km in the Str aight Dover. It is the smallest of the shallow seas around the continental shelf of Europe, covering an area of some 75,000 km2
The five Olympic rings represent the five continents involved in the Olympics .
blue for Europe, yellow for Asia, black for Africa, green for Australia and red for America
Except for 强调整体，除了一点小瑕疵…
Your composition is good except for a small spelling mistake.
