amateurism

n.业余性,非职业的作为

（1）业余爱好；（2）业余演艺情结；（3）不熟练的状态或行为；（4）业余精神或态度。

名词；

1. His performance in the concert was a clear display of amateurism.
他在音乐会上的表演清楚地展现了业余演艺情结。

2. The team's lack of training and preparation showed their amateurism.
这个团队缺乏训练和准备，显示出他们的不熟练状态。

3. She approached her painting with a sense of amateurism, purely for the joy of it.
她以一种业余精神来进行绘画，纯粹是为了乐趣。