The use of this little-known practice has accelerated in recent years, as colleges continue to do their utmost to keep students in school (and paying tuition) and improve their graduation rates.
近年来，这种鲜为人知的做法的使用速度加快了，因为高校一直在尽最大努力让学生留在学校（并继续缴纳学费），同时提高毕业率。
Contributors offer a wide array of stories, from little-known new shortcuts to long-established alternate routes.
投稿者提供了各种各样的故事，从鲜为人知的新捷径到早已存在的替代路线。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。