amateur

名词 amateur:

1. someone who pursues a study or sport as a pastime
2. does not play for pay

形容词 amateur:

1. engaged in as a pastime
   同义词：recreational, unpaid
2. lacking professional skill or expertise
   同义词：amateurish, inexpert, unskilled

1. Amateur actors often overact.
   业余演员往往表演过火。
2. The competition is open to both amateur and professional photographers.
   业余的和职业的摄影者均可参赛。
3. The tournament is open to amateurs as well as professionals.
   这次比赛不仅职业运动员可以参加，而且业余运动员也可以参加。
4. He is an amateur painter.
   他是一个业余画家。
5. He is an amateur photographer.
   他是个业余摄影爱好者。
6. You are a professional, but I am an amateur.
   你是专职的，我是业余的。