By the time you stepped through the door, the carriage was teeming with people, packed so tightly it felt like being in a sardine can.,Reasonableness is the first thing an underground worker should consider, as Comrade "Zhu Lin" instructed and Cheng Qianfan always kept in mind.,Then, if Lao Liao chooses to wait for the next train at his current location, it means everything is normal and there hasn't been any urgent notification from superiors, so things remain as usual.。