Make sure all alarms are on.

确保所有警报信号都开着。

youdao

Make sure there are locks on all doors and smoke alarms on each floor.

确认所有门都锁好了，每层楼都有烟雾报警器。

youdao

Make sure there are locks on all doors and smoke alarms on each floor.

确认所有门都锁好了，每层楼都有烟雾报警器。

youdao