adder
[ˈædɚ]
n.
加法器，（欧洲产）蝰蛇（小毒蛇），（北美产无毒的）猪鼻蛇;
例句:
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The Adder...casteth off yearley his uppermost skin or coate.
来自J. Maplet
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He is as deaf as a post [ stone , door - post , door - nail , an adder ].
他完全聋 了.
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The adder is Britain's only venomous snake.
蝰蛇是英国唯一的一种毒蛇。
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By far the most common snake in Britain is the adder.
在英国最常见的蛇是蝰蛇.
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The only snake in Briatin that can cause any harm is the adder.
来自BBC
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She yelled out on seeing him as if an adder had stung her.
来自Sir W. Scott