set off – tłumaczenie phrasal verb

The coach set off late because the driver couldn't find the keys.

I think we should set off before six to avoid the traffic.

The fog was thick but we managed to set off on time.

I think a bird might have set off the alarm. I'll change the settings in the morning.

The burglars were caught after they set off an alarm in a corridor.

Tell the staff the fire alarm has to be set off but that it's just a test.