dabbler

Sure, you might have dabbled back then, but you were just a dabbler.

当时，你也许会玩一下，但你只是业余爱好者。

He's not a dedicated musician, just a dabbler.

他并不是专门的音乐家，只不过是个业馀爱好者。

I'm too serious to be a dilettante and too much a dabbler to be a professional.

作为一个业余艺术爱好者我过于严肃认真了，而为一个专业人员我又太业余了。

I have held this English dabbler person in contempt most!

我最鄙视这种半吊子英语的人了！

a dabbler in the graphic arts;

平面造型艺术的涉猎者；