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单词 periodic
释义 peri·od·ic AW BrE /ˌpɪəriˈɒdɪk/NAmE /ˌpɪriˈɑːdɪk/ (also less frequent peri·od·ical BrE /ˌpɪəriˈɒdɪkl/ NAmE /ˌpɪriˈɑːdɪkl/) adjective [usually before noun] happening fairly often and regularly 间发性的;定期的;周期的Periodic checks are carried out on the equipment. 设备定期进行检查。 peri·od·ic·al·ly AW BrE /ˌpɪəriˈɒdɪkli/NAmE /ˌpɪriˈɑːdɪkli/ adverbMailing lists are updated periodically. 邮寄名单定期更新。
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