He cut his teeth performing at local bars and nightclubs.一开始，他在当地酒吧和夜总会表演。

She cut her political teeth [=she began her political career] as a volunteer during the 1992 presidential election.她在1992年的总统选举中担任志愿者，并从此开始了她的政治生涯。

Many television and movie stars cut their teeth on soap operas.许多影视明星都是从演肥皂剧开始演艺生涯的。