to improve relationships or understanding between groups
改善群体之间的关系或理解 (gǎishàn qúntǐ zhījiān de guānxì huò lǐjiě)
"The project aims to build bridges between rural and urban youth."
"该项目旨在改善城乡青年之间的关系。" (gāi xiàngmù zhǐ zài gǎishàn chéngxiāng qīngnián zhījiān de guānxì)
to blend gradually with surroundings; become less noticeable
to improve the appearance of something slightly, like makeup...
to contribute to an overall result or future achievement
to stop and rest for a moment after physical activity
to inspire creative thinking or ideas
to forget something unpleasant and move forward