测试网不花钱，一般回报确定，但是卷的不行，还需要一定的技术背景才能入围 已上线的项目需要氪金参与，回报不确定但与花销正相关 社区贡献需要长期关注并参与，回报按劳分配 所以空投怎么玩，还需要量力而行 The testing network did not spend money, and the return was usually certain, but the volume was not good enough. It also required a certain amount of technical background before it could be shortlisted. Projects that were already online required payment to participate, and the return was uncertain but positively related to the cost, community contribution needs long-term attention and participat...