短语词组短语gainful occupation [劳经]有报酬的职业;翻译gainful expressions 美辞gainful employment 有人为的gainful unremunerative 有利益的gainful employofficialt 有报酬的Gainful Vocational 名字gainful worker 有收益的工作者gainful work 有报酬的工作gainful balance 贸易顺差 返回 gainful