英语词汇“have a second string to one's bow”的读音、翻译、释义、用法及例句-开邑网

词汇	have a second string to one's bow
释义	have a second string to one's bowhave a second string to one's bowv.1.■有后备方案,有第二手准备,有另外的手段
随便看	interference eyepiece interference factor interference fading interference field interference-field intensity tester interference field strength interference figure interference filter interference filter monochromator interference finding instrument interference fit interference fit connection interference fluctuation of sound interference-free interference frequency interference frequency measurement interference fringe interference fringe method interference fringe modulation interference from neighboring line interference function interference generator interference grating interference guard band interference hump

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