By a stroke of fortune he found work almost immediately.

他运气好，几乎立刻找到了工作。

《牛津词典》

The joker was choked by a stroke of smoke for his undue provoking.

说笑话的人因他的**被一阵烟梗住了。

youdao

But Napoleon, by a stroke of luck, was able to build two new bridges.

侥幸的是， 拿破仑居然突击造起两座桥。

youdao

Doctor Yusuf said the single pill, taken once a day, could reduce the average person's risk of heart disease and stroke by about half.

VOA: special.2009.04.08

Those comments echo earlier assessments by analysts here in Seoul, who say Kim Jong Il's apparent stroke about a year ago challenged perceptions of his complete command of the North's government.

VOA: standard.2009.06.22

By a stroke of great fortune he ended up being transferred to the individual himself.

FORBES: The Case For 'Under Qualified' Employees: The 5 Best Reasons To Hire for Aptitude, Not Skills

He dashed off a late application, where by a stroke of luck it was fielded and accepted by Mr. Dodd.

WSJ: When Success Follows the College Rejection Letter

Motivated either by a stroke of inspiration or desperation, Collins reshuffled his lineup in an attempt to snap the Mets' team-wide slump.

WSJ: Maybe Harvey Could Learn to Hit?