美国西北部大眼半水栖的小型蝾螈。
Small large-eyed semiaquatic salamander of the United States northwest.
你或许不知道，但这些半水栖的鸟是动物王国中献身精神最强的父母。
You may not know it, but these semi-aquatic birds are some of the most dedicated parents in the animal kingdom.
再看河鸟的情形，便是最精明的观察者，看了此鸟的死标本，也难推想它具有半水栖的习性。
In the case of the waterouzel, the acutest observer by examining its dead body would never have suspected its sub-aquatic habits.
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