@lukeliao1 There weren't many mask mandates in 2021, except the travel one (with spotty at best compliance in many areas).
@lukeliao1 2021，除旅行任务外，面具任务并不多（在许多领域的合规性最多也不稳定）。
@lukeliao1 There weren't many mask mandates in 2021, except the travel one (with spotty at best compliance in many areas).
@lukeliao1 2021，除旅行任务外，面具任务并不多（在许多领域的合规性最多也不稳定）。