curfew
/ˈkɜ:fju:; `kəfju/ n signal or time after which people must stay indoors until the next day 宵禁
an 11 o'clock curfew 从11点钟起宵禁
impose a curfew, eg under martial law 实行宵禁（如根据戒严法）
lift/end a curfew 解除宵禁
Don't go out after curfew. 宵禁时不要外出.