| 单词 | periodical |
| 释义 | periodical¹ 1.+ check-up, screening间歇的；定期的；周期性的 periodical screening for cancer定期进行癌症检查 periodical check-ups定期体检 to make periodical visits to sb定期拜访某人 She made periodical visits to her dentist.她定期去看牙医。 2.+ publication期刊的 books and periodical publications图书和期刊 3.(published at regular intervals)定期出版的 the field of periodical literature定期出版文献领域 newspaper and periodical journalism报纸和期刊 periodical²期刊 a monthly periodical月刊 |
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