the practice of taking part in a sport or other activity for pleasure, not as a job 业余爱好者;业余运动员 - (usually disapproving)
the fact of doing something in an way that shows no skill 业余主义: 以一种没有技巧的方式做某事The simplistic camera work adds to the feeling of low-budget amateurism in this movie. 简单的摄影作品增加了这部电影中低预算业余的感觉。