當然，父親會經常供給一些零錢，但是叔叔和嬸嬸也總是額外收入的源泉。 Father, of course, provides a regular supply of pocket-money, but uncles and aunts are always a source of extra income.
可消費的源泉 An expendable source.
豐富的想象力；新思想的豐富源泉 A fertile imagination; a fertile source of new ideas.
華茲華斯從風景優美的英格蘭湖區獲得靈感。那地方是他靈感的巨大源泉。 Wordsworth found (his) inspiration in/drew (his) inspiration from the Lake District scenery. It was a great source of inspiration to him.
