Gainon盖农gainn.获得；收益；增益v.获得；到达；增加；获利；(钟、表等)走得快gaining weight putting on weight增加体重gain/win/achieve one's endsgain distribution characteristics泵浦均匀性gain on conversion of investments[经] 投资变换收益gain from reduction capital stock[经] 减少股本收益Gain mastery by striking first.先发制人而占上风。Gain from exchange rate difference汇兑收益gained their exclusive attention.获得他们的全部注意力gain-to-noise temperature ratio增益对温度噪声比Gain-switched semiconductor laser增益开关半导体激光器

1. People tend to gain weight on holidays.
   人们常常在假期长胖。
2. Three good meals a day should flesh him out no time.
   一日三顿美餐，会使他很快长胖。