出门左转剑网三交易吧。 拧上一个灯泡需要几个存在主义者? How many existentialists does it take to screw in a light bulb? 两个 2. 一个负责换灯泡,另一个负责观察白炽灯在广阔的虚无空间中其本质的象征意义 One to change the light bulb and one to abserve how it symbolizes an incandescent beacon of subjectivity in a netherworld of cosmic nothingness.