freewheeling

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If you have any credit card debts from your freewheeling college years, begin paying those off in earnest.
如果你在隨心所欲的大學生活裡欠下信用卡債務，開始認真地還掉這些債務吧。
Of course you met people along the way, it was a freewheeling summer, lots of European kids-- it's normal for European kids to do that.
儅然，你沿路會遇到不同的人，那真是一個隨心所欲的夏天，所以有許多歐洲的孩子，在歐洲孩子這麽做是很正常的。
By the same token, some freewheeling American doctors do not like KP’s rigid systems or fixed (albeit generous) salaries.
出於同樣的原因，一些美國毉生隨心所欲，不像KP有一成不變的系統和固定的薪水。

The net is also being cast over markets in which freewheeling growth contributed to the crisis.
ECONOMIST: Financial reform in America
What Brown forsees is beyond the famous freewheeling Silicon Valley atmosphere of a Google or Yahoo.
FORBES: Workplace of Warcraft
For millions of secular Turks the army remains the sole guarantor of their freewheeling lifestyle.
ECONOMIST: The Turkish army

If you refer to someone's freewheeling lifestyle or attitudes, you mean that they behave in a casual, relaxed way without feeling restricted by rules or accepted ways of doing things.