英语词汇“preparatory exercise”的读音、翻译、释义、用法及例句-智慧网

词汇	preparatory exercise
释义	preparatory exercisepreparatory exercise1.■准备操
随便看	backcross ratio back cupping back current back current brake back-current relay back current step back curtain back curved vane back cushion back cut back cut-off power recorder back cutting backcycling back cylinder cover back cylinder head backdate back dead centre backdeep back diagonal pass back diffusion back-diffusion back digger backdigger back diode back discharge

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