一次偶然的机会英语怎么说

a chance
eg:A chance meeting with an old co-worker led to a job for Henry as an engineer at the Edison Detroit Electricity Company, the leading force in another new industry.
由于一次偶然的机会,亨利遇到了一位原来的同事,这得以使他在爱迪生底特律电力公司谋到一份工程师的工作,该公司属另一新兴行业的中坚。