We decided, more or less on a whim, to sail to Morocco.

我们多少有些心血来潮地决定乘船去摩洛哥。

《柯林斯英汉双解大词典》

We bought the house on a whim.

我们一时冲动买了这所房子。

《牛津词典》

Don't start the transition on a whim.

不要草率地开始过渡流程。

youdao

In the Mesopotamian stories, for example, the gods act capriciously, the gods act on a whim.

例如，在美索不达米亚的故事中，神肆意妄为，凭着一时的念头做事。

耶鲁公开课 - 旧约导论课程节选

On a whim--and for free--Freedman spent a weekend roughing up some book covers with animal illustrations.

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The issue is that it is very expensive to simply explore a spot on a whim.

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Assets may be expropriated on a whim in some of the more corrupt countries.

FORBES: Magazine Article