2. It is not only an amateur, and it is a professional sport. 它既是一项业余的,也是一项职业的运动项目。
3. The young politician is an amateur at manipulating public opinion. 那个年轻政客在操纵舆论方面是个外行。
英英解释
n.
1. someone who pursues a study or sport as a pastime
2. does not play for pay adj.
1. engaged in as a pastime
2. lacking professional skill or expertise