These changes have occurred over a long time span.

这些变化经过了很长一段时间才形成。

《牛津词典》

The project must be completed within a specific time span.

这项工程必须在规定期限内完成。

《牛津词典》

Enable outgoing synchronization and set the time span.

激活外出性同步化并设置时间跨度。

youdao

In fact, America's retirement finances would be in far better shape at the end of the (arbitrary) 75-year time-span if his system were in place.

ECONOMIST: Social Security reform

If it is possible to attach a particular genre of music to a specific decade, Electronic Dance Music (EDM) appears to be the current front-runner for the 2010-2020 time-span.

FORBES: Ultra Music Festival: Smashing Records And Global Expansion

Comparing the grosses against those of other, similar pictures in the same time-span, the studio computers whirr all weekend to produce the best possible projection, come Monday morning, of the film's ultimate potential.

ECONOMIST: The won and lost weekend