periodicaln.期刊adj.定期的
periodical index期刊索引
periodical works编辑工作
periodical edits期刊编辑
periodical audit定期查帐
periodical names期刊名称
periodical trend阶段趋势
periodical stack期刊陈列架
periodical fever乍热
periodical array期刊方阵
periodical print期刊
"he only works sporadically"