英语词汇“free period”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	free period
释义	free period [fri: ˈpiəriəd] freq. 24 dict. 3 cmpt. 2 spoken 13 n.空课时（学生或教师没有课的时候） [网络]自由周期；自由振荡周期；空闲时间
随便看	acoustic attenuation acoustic attenuation coefficient acoustic attenuation constant acoustic auropalpebral reflex acoustic automonitoring acoustic axis acoustic backing acoustic backscatter system acoustic baffle acoustic barrier acoustic-based acoustic basement acoustic bass acoustic bass guitar acoustic bassist acoustic bassists acoustic beacon acoustic beacon locator acoustic beacon on bottom acoustic beacon pinger acoustic beam acoustic beam deflector acoustic-beam focusing acoustic beams acoustic bearing

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