periodical

periodical
noun
  1. a magazine or newspaper published at regular intervals
    期刊
adjective
  1. [attrib.]occurring or appearing at intervals; occasional
    不时出现(或发生)的;偶尔的
    she took periodical gulps of her tea.
    她时不时地猛喝一大口茶。
    ■(of a magazine or newspaper) published at regular intervals
    (杂志,报纸)定期出版的
    Britain's best periodical art magazine.
    英国最好的定期出版的艺术杂志。
派生
periodically
adverb
英语宝典
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