For a long time biologists believed that male deer used buck rubs not only to clean and polish antlers but also to provide practice for the ensuing male-to-male combat during the rut.

长期以来，生物学家们认为雄鹿擦痕不仅可以清除并磨光鹿茸，还可以借此练习发情期时雄鹿之间的角斗。

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A pay rise only leads to short-term satisfaction before the rut sets in again, according to a new study.

最新研究显示，加薪给人带来的满足感非常短暂，不久就一切如旧了。

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A cup of water poured into a rut or a pothole on the ground only can float a small piece of grass or a leaf.

而当我们将一杯水倒在地上凹下去的地方时，那一摊水就只能让一根小草、一片树叶浮起而已。

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That groove is now a rut and the only way out is to raise your fees and re-examine your market.

FORBES: Why You're Not Getting What You Want

Many middle managers complain that they are stuck in a rut and the only way for them to change the result is to leave the company.

FORBES: Stuck In A Rut: Change The Way You're Perceived

To break out of the rut Apple stock is in, Apple needs to introduce not only a new innovation, but a major new category.

FORBES: Apple Can Hit $1,000 In 2013 If Tim Cook Follows Steve Jobs' Formula