车间: workshop...
妄想: to attempt vainly, a vain attempt, delusion...
俗话说: as the proverb says, as they say......
大同小异: virtually the same, differing only on small points...
大海: sea, ocean...
私下: in private...
读: to read, to study, reading of word (i.e. pronunciation), similar to 读书 read book...
