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The wall is built of alternating sections of stone and earth, with some sections reaching a height of up to 4 meters.
这堵城墙是用石头和泥土交替建造而成，有些路段达到了4米的高度。
youdao
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The wall is built of alternating sections of stone and earth, with some sections reaching a height of up to 4 meters.
这堵城墙是用石头和泥土交替建造而成，有些路段达到了4米的高度。
youdao