gain·ful /ˈgenfəl/ (a.)有利益的,唯利是圖的
Gain·ful a. Profitable; advantageous; lucrative. “A gainful speculation.” --Macaulay. -- Gain*ful*ly, adv. -- Gain*ful*ness, n. ◄ ►
gainful adj : yielding a fair profit [syn: paid, paying]