Period may be extended upon expiration (through agreement).

通过协议可以延长期限。

《新英汉大辞典》

I couldn't have gone through that bitter period without your generous help.

如果没有你的慷慨相助，我熬不过那段艰苦时期。

youdao

Most teenagers go through a period of rebelling.

大多数青少年都要经历一段叛逆期。

《牛津词典》

The study examined employment records for eight cities in Minnesota for a three-year period through two thousand six.

VOA: special.2009.05.27

Being a person is something you can go through for a period of time and cease to be.

作为人的存在是可以经历一段时间然后停止的。

耶鲁公开课 - 死亡课程节选

In the same way that being a child is a phase you can go through for a period of time and then cease to be.

就像是作为儿童存在一样也是一个阶段,会经历一段时间而后停止。

耶鲁公开课 - 死亡课程节选

"We are going through period where the market knows there are some large macro obstacles on the horizon, " said JJ Kinahan, chief derivatives strategist at TD Ameritrade.

CNN: Fear index plummets to a 5?-year low

First, the Pacific is going through a cooler period, called La Nina (with this one being particularly strong), and the Atlantic is going through a warmer period.

FORBES: 2011 Forecast: World Outperforms U.S., Europe Scuttles

The spot month period is specific to each commodity contract, need not correspond to a month-long period, and may extend through the period when delivery obligations are incurred.

FORBES: CFTC Position Limits Rule Divides Agency, Angers Market Participants