experienced       
adjective  approving uk/ɪkˈspɪə.ri.ənst/ us/ɪkˈspɪə.ri.ənst/
B1 经验丰富的;有阅历的;有见识的
having skill or knowledge because you have done something many times
  an experienced teacher 经验丰富的老师 
 She is very experienced in marketing. 她在市场营销方面经验丰富。 
 Opposite: inexperienced
 - More examples
 - I don't think he's really experienced enough for this sort of job.
 - They put up a good fight against a more experienced football team.
 - She's an experienced politician with a down-to-earth style.
 - Even the most experienced of West Indian batsmen was unsettled by the sheer speed of this bowler.
 - What sort of work are you experienced in?