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詞 canal:
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(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion
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a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
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long and narrow strip of water made for boats or for irrigation
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之上相關內容獨家撰寫，受著書權確保，侵犯肖像權必究
海詞詞典下載，十八年廠家
美
['k?n?lled]