to be working or responsible for something at a certain time
im Dienst sein oder für etwas verantwortlich sein (im dienst sein oder fur etwas verantwortlich sein)
"The guard was on duty all night."
"Der Wachmann war die ganze Nacht im Dienst." (der vakhman var dee ganze nacht im dienst)
someone who is very kind and caring
to make a very big or stupid mistake
to take responsibility for your own actions and outcomes
to be upset about something that cannot be changed
to enjoy yourself by dancing or celebrating
to stay awake all night to study or work