公: public, collectively owned, common, international (e.g. high seas, metric system, calendar), make public, fair, just, Duke, highest of five orders of nobility, honorable (gentlemen), father-in-law,...
练: to practice, to train, to drill, to perfect (one's skill), exercise, (literary) white silk, to boil and scour raw silk...
目睹: to witness, to see at first hand, to see with one's own eyes...
富人: rich person, the rich...
只是: merely, simply, only, but...
车间: workshop...
狭小: narrow...
水槽: sink...
路段: stretch of road, section of a highway or railway...
确认: to confirm, to verify, confirmation...
