recall past pain -- as a warning for the future;bring home the lessons painfully learned;draw a lesson from a bitter experience;recall a painful experience ;

, is taking cues from apps and websites aimed at the mainstream& by buying them.
所以,位于华盛顿州雷德蒙德市的Concur痛定思痛,开始收购针对主流人群的应用和网站,试图向它们学习。
来源:互联网摘选
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