noun 下载 🔗分享 封锁，禁闭，封城。 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 pandemic, etc. Examples : "The school went into lockdown after a stranger was seen on the playground. " 学校操场上出现陌生人后，学校立即进入封锁状态。 government police medicine disaster society world condition event action state 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 合拢木，木筏捆扎装置 A contrivance to fasten logs together in rafting. Examples : "The rivermen secured the lockdown connecting the first two logs, ensuring the raft wouldn't break apart on the journey downstream. " 河工们固定好连接前两根木头的合拢木，确保木筏在顺流而下的过程中不会散开。 nautical technical 与AI对话词汇游戏阅读练习
