You can also specify the start and ending period by either date or time of day.

还可以通过某天的日期或时间指定开始到结束的一段时间。

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Many of the country's current problems, including crime and poor education and health care, either date from that period or were exacerbated by it.

巴目前的许多问题，如犯罪、教育与医疗落后等，或肇始于那个时期，或恶化于当时。

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Some are annoyed by the fact that Reflector has an update mechanism making the product impossible to use after an expiration date, so they will either buy v.7 or stop using it altogether.

有些人很气愤，因为Reflector有一种更新机制，使得它在有效期满之后就不能使用了，所以他们只能购买v . 7，或者就不能使用它了。

youdao

Compliance with the new guidance is not required by law, although Defra says businesses are legally bound to label food with either a use-by or best-before date.

BBC: Scrap food sell-by dates, government urges manufacturers

Policy plans adopted now would either be backward-looking, out of date by the next election, or stolen by Labour.

ECONOMIST: The Tories

In their studies, University of Chicago psychologists Minjung Koo and Ayelet Fishbach examined how people pursuing goals were affected by focusing on either how far they had already come (to-date thinking) or what was left to be accomplished (to-go thinking).

FORBES: How to Become A Great Finisher