• 2022-05-30
    中国大学MOOC: The great wall symbolizes that great achievement can be made with a a common will and __________ .
  • concerted effort

    内容

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      中国大学MOOC: _________ were used to build the Great Wall in history.

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      中国大学MOOC: Over the centuries, sections of the Great Wall have _________________________________.

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      中国大学MOOC: The Great Wall is one long wall built over 2,000 years ago.

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      中国大学MOOC: The Great Wall is unparalleled in the world in its scale and ______________, as well as for the great quantities of labor and the degree of difficulty involved .

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      中国大学MOOC: You are _______ invited to attend a hike to the Great Wall on Friday.