They leapt into action immediately.

他们立即断然采取了行动。

《牛津词典》

He had leapt into her arms.

他跳进了她的怀里。

youdao

A good idea just leapt into my mind.

我突然想出了一个好主意。

youdao

Holiday-makers scrambled down the cinder path, leapt into their boats and headed towards the island.

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After being asked if his job seekers did housework, Lance leapt into the household-help business.

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On hearing she had won, Shaw leapt into the arms of skating partner Matt Evers, laughing in disbelief.

BBC: NEWS | Entertainment | Suzanne Shaw wins Dancing On Ice