老师让我们把作文缩短到500字以内。

The teacher asked us to ___shorten our essays to under 500 words.

为了赶上最后期限，我们缩短了项目周期。

We ___shortened the project timeline to meet the deadline.

夏天过后，白天会逐渐变短。

As summer ends, the daylight hours will ___shorten.