英语词汇“free activity period”的读音、翻译、释义、用法及例句-开邑网

词汇	free activity period
释义	free activity periodfree activity period1.■自由活动课时;自习课
随便看	chamfered edge chamfered edge brushing machine chamfered groove chamfered joint chamfered panel chamfered section chamfered shoulder chamfered teeth chamfered washer chamfer head screw chamfering chamfering bit chamfering gear shaper cutter chamfering hob chamfering machine chamfering mechanism chamfering tool chamfering unit chamfer margin chamfer needle chamfer plane chamfer type transfer needle chamfron chamher blasting Chamisal

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