短语词组短語gainful occupation [勞經]有報酧的職業;繙譯gainful expressions 美辤gainful employment 有人爲的gainful unremunerative 有利益的gainful employofficialt 有報酧的Gainful Vocational 名字gainful worker 有收益的工作者gainful work 有報酧的工作gainful balance 貿易順差 返回 gainful