论文，专著：经努力研究后写成的作品，如论文。
A work, such as a thesis, that results from studious endeavor.
把任何所有来自划船展和任何其他经努力挣来的利益致力于划船运动和与之有关的产业。
To dedicate any and all profits from the boat shows or any other money making endeavors to be used only in behalf of programs beneficial to the sport of boating and the industry connected therewith.
因为像与预算削减作斗争的洛杉矶等社区已经减少了需经努力才能得到的涂鸦项目，所以涂鸦才会急剧增长。
The upsurge comes as communities like Los Angeles, struggling with budget cuts, have trimmed graffiti fighting programs
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