Literally: Dirty, Dangerous and Difficult (or Demeaning) job.
3D job (plural 3D jobs)
- A menial blue-collar job often performed by migrants.
dirty, dangerous, difficult job
- Mandarin: 3K產業, ３K产业 (sān kèi chǎnyè), 3K行業, 3K行业 (sān kèi hángyè) (number 3 can also be replaced with 三 (sān) - "three")
- Japanese: 3K (さんケー, san kē)