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TOEFL IELTS BNC: 10183 COCA: 12986
periodical
pɪəriɒdɪkəl ˌpɪriˈɑdɪkəl
Word forms: plural periodicals
1 N-COUNT (尤指学术)期刊 Periodicals are magazines, especially serious or academic ones, that are published at regular intervals. (尤指学术)期刊
  • The walls would be lined with books and periodicals.

    这几面墙会摆放书籍和期刊。

  • ...a monthly periodical.

    月刊

2 ADJ [usually ADJ n] 间发性的;定期的;周期的 Periodical events or situations happen occasionally, at fairly regular intervals. 间发性的;定期的;周期的
  • She made periodical visits to her dentist.

    她定期去看牙医。

  • ...periodical screening for cancer.

    定期进行肿瘤检查

periodically
  • Meetings are held periodically to monitor progress on the case.

    定期举行会议以监督案件的进展。

  • Police were periodically patrolling the area.

    警察定时在这一地区巡逻。

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