lockdown

中文： 封城、行动限制

1. The confinement of people in their own rooms (e.g., in a school) or cells (in a prison), or to their own homes or areas (e.g., in the case of a city- or nation-wide issue) as a security measure after or amid a disturbance or as a non-pharmaceutical intervention in a pandemic. (countable, uncountable)
2. A contrivance to fasten logs together in rafting. (US, countable, uncountable)

复数 lockdowns