Collor nurtured the idea that he was a superman, who single-handedly could resolve Brazil's crisis.

考乐抱有一个想法，即他是可以一手解决巴西危机的超人。

《柯林斯英汉双解大词典》

After setting himself up in Hollywood, he single-handedly pioneered the concepts of branding and merchandising—something his company still does brilliantly today.

进入好莱坞后，他单枪匹马开创了品牌和营销的概念，而他的公司至今仍在这方面做得很出色。

youdao

He single-handedly painted a good picture.

他仅凭一己之力就画了一幅好画。

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The issue, while important, is probably not enough to single-handedly derail financial regulatory reform.

FORBES

In 30 days gentleman, I will single-handedly attempt to launch a company with nothing but compassion.

FORBES: The Greatest Father's Day Gift Ever

More people are bringing up children single-handedly, or are in families where both parents work.

ECONOMIST: I promise to do my best (if I can find the time)