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The map gave a valuable clue about the cause of the disease.
这张地图提供了一条说明霍乱起因的很有 价值的线索。
youdao
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The map gave a valuable clue about the cause of the disease.
这张地图提供了一条说明霍乱起因的很有价值的线索。
youdao
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The map gave a valuable clue about the cause of the disease.
这张地图提供了一条说明霍乱起因的很有价值的线索。
youdao