研究者在进行参与式观察的过程中需要做的事情包括？
① 带着前设甚至偏见进入研究对象的领域中 ② 勤写田野日记 ③ 移情 ④ 仅仅做一名客观中立的旁观者
What should researchers do during the process of participant observation?
① participating into the lifeworld of the objects with presuppositions even prejudice ② writing filed dairy diligently ③ empathizing ④ to be an objective bystander