n.期刊
adj.定期的
She refereed for a periodical a few years ago. 幾年前她為一期刊擔(dān)任編審。
They have already put out a new periodical. 他們已經(jīng)出版了一種新的期刊。
I should be glad if you could insert this article into your periodical. 如果能把這篇文章登在你的期刊上我將很高興。
用作形容詞 (adj.)I expect regular periodical reports from you. 我期待你定期匯報(bào)。
The worker has a periodical check on the machine. 工人對(duì)機(jī)器要定期檢查。
adv.周期性地；定期地
不定期地
