Zimmermann 齐默尔曼
Zimmermann is a German occupational surname which is literally an older German term for a carpenter. The modern German terms for the occupation of carpenter are Zimmerer, Tischler, or Schreiner, but Zimmermann is still used.
Zimmer in German means room or archaically a chamber within a structure. The German man or mann is, in English the extra n is ignored, man or worker. Combining the two German words you get a worker of wood or literally translated room man or room worker.