遭遇战下拉只有三个模式，但是用鼠标滚轮能滚出第四个模式，试了一下和争霸战毫无区别，是bug还是没做好呢？

是，预告里确实说要有新模式

经济模式，是看谁经济发展得好吗

Economy mode: Players are in a race to obtain the highest score in economy. To win this game mode focus on: building up your economy by training units and build buildings. Collect resources, progress in age and improve your technologies. You can also complete Economy Challenges to boost your score.
经济模式：玩家间竞争获得最高的经济分数。如果想在该游戏模式获胜，需要把精力集中在以训练单位和建造建筑发展经济。收集资源，进入新时代，改良自己的技术。你也可以通过完成经济挑战提升分数。

养成模式