... gain a living谋生,维持生计 gain a prize 获奖 gain a wide knowledge 获得广博的知识 ...
2
?在学校里修得额外的学分
维持生计；在学校里修得额外的学分Gain a living; gain extra credits in school.
3
?维持生计
维持生计；在学校里修得额外的学分Gain a living; gain extra credits in school.
双语例句
1
Living in near-poverty, public reputation shot, with nothing to gain or lose, Rembrandt was painting in a fresh way because he was painting mostly for himself.
接近赤贫的生活，名誉受损，他已经无所畏惧。 伦勃朗开始以崭新的方法创作，因为他是在为自己作画了。
2
Only by living in the USA can you truly become fluent in English and gaina deeper appreciation and understanding of US culture.
但是，只有自己生活在美国，你才能讲一口地道流利的英语，才能对美国文化有更深入的了解。
3
With all of these positive attributes concerning eco-living, will the green construction movement and a low carbon lifestyle gain popularity and become the predominant trend of the future?