Hobbyists and students are gaining access to technologies without being part of a long-standing amateur establishment.
2019年6月六级真题（第三套）阅读 Section B
This form of "self- governance" is possible within long-standing amateur organizations that, over time, arc able to build a sense of responsibility to community members, as well as society in general.
2019年6月六级真题（第三套）阅读 Section B
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
长期存在的；由来已久的
A long-standing situation has existed for a long time.