| 释义 |
DEFINITIVE EXAMPLES 权威例句〔lockdown〕Prisoners have been placed on lockdown to prevent further violence at the jail.已对囚犯实行活动限制，以免狱中再出现暴力行为。牛津高阶〔lockdown〕The Secret Service is imposing a virtual lockdown on the city.特勤局实质上把整个城市都封锁了。剑桥高阶〔lockdown〕The school has been placed on lockdown this morning while authorities investigate a bomb threat.这座学校今天早晨被置于封锁之下，便于当局调查炸弹威胁。剑桥高阶 |