期刊的英文：
periodical

Core periodical
核心期刊

The periodical's circulation has been fattening on sex, crime and scandal.
那家期刊的销售量是靠描写色情、犯罪和丑闻而增多的。

Aeronautical and astronautical periodicals
航空航天期刊

An editorial with real punch
有真实效应的期刊

The review is published quarterly.
这期刊每季度出版一期。

This is a bulletin on aging.
这是关于老龄问题的期刊。

The review is published quarterly (=every three months).
这期刊每季度出版一期。

Dad told me to cord those back numbers.
爸爸叫我把那些过期期刊捆好。

We still have some back issues of this magazine in stock.
我们还库存一些这本杂志的过期刊。

The quarterly magazine is a periodical published every three months
季刊是每3个月出版一次的期刊。

juvenile period
幼年期(构成中心木质部的一段时期)

But this is a transitional period.
但这是个转变过程。

The period includes the legal period and the period designated by the people's court.
期间包括法定期间和人民法院指定的期间。

We'll call this time period the translation period.
我们称这个时间周期为转化时期。

In this period, the cost would be enormous.
在这期间，就会损失惨重。