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relative(area of)cardiac dullness的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
名詞 relative:
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a person related by blood or marriage
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an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
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estimated by comparison; not absolute or complete
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properly related in size or degree or other measurable characteristics; usually followed by `to'
