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Sturgeons and gars are ganoid.
鲟鱼和长嘴鱼都是硬鳞鱼。
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Gars are confined chiefly to fresh water, though some species enter brackish or salt water.
主要栖于淡水，但有的种可降入半咸水甚至咸水。
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Gars are confined chiefly to fresh water, though some species enter brackish or salt water.
主要栖于淡水，但有的种可降入半咸水甚至咸水。
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