Breakdown of zur
zu
to; at
Usages of zur
Traurig geht er zurück zur Arbeit.
Being sad he goes back to work.
Here traurig is used as an adverb, but it can be an adjective as well:
Der traurige Mann geht zur Arbeit zurück.
Der traurige Mann geht zur Arbeit zurück.
The sad man goes back to work.
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