The body is programmed to start the day with sunrise, he explains, and this gets later as the days get shorter.

他解释说，人体的编程是在日出时开始一天的工作。随着白天变短，这一过程会变晚。

youdao

When autumn comes, days get shorter.

秋天来临的时候，白天变短了。

youdao

So after each division, the telomeres get shorter and one of the things that may happen after a while is that pieces of the genes themselves get broken off the Chromosomes.

每次分裂后，端粒变短一段时间后可能发生的一件事是染色体上的基因片段会断裂。

youdao

They produce colorful blooms when days get shorter and nights get longer.

VOA: special.2010.06.29

People lived shorter lives and so they didn't get far enough into the age span to suffer from the chronic diseases that people are suffering more today.

当时的人寿命比较短所以他们,活不到现代人那么长,长得足以患上那些慢性疾病

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But with other budget cuts, such as Medicare and welfare, becoming so painful, the pole may get shorter.

CNN: Budget cutters take hard look at Social Security - Sept. 27, 1995

Jones is betting that as technology cycles get shorter, manufacturers will favor nimble suppliers who can help them figure out how to churn out smaller, faster chips.

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Every time a cell divides, its telomeres get shorter.

ECONOMIST: Ageing