疫情严峻时封闭,疫情缓和时解封,情况不好再封闭,再解封……过去三年,大家已经算不清经历过多少次这样的“剪彩”。 Lockdowns were implemented when the pandemic became severe, and then lifted when conditions improved. In the past three years, we have all lost count of these periods of lockdown and reopening.