Sooner than work for others,she started her own business.

Sooner (=Rather) than work for others,she started her own business.
翻译：她没有为别人打工,而是开创了自己的事业.
语法：do A sooner than do B 宁愿做A,不愿做B
背出记住以下有用的短语：
prefer A to B
would rather do A than do B
do A instead of doing B
prefer to do A rather than do B
prefer doing A to doing B
like doing A better than doing B

在为他人打工之前，她创立了自己的业务。