freewheeling
[ˈfriˈhwilɪŋ, -ˈwi-]
n.
惯性滑行;
adj.
惯性滑行的，随心所欲的;
v.
轻快地行动，凭惯性前进( freewheel的现在分词 );
例句:
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On the descents, cyclists spin past cars, freewheeling downhill at tremendous speed.
在坡道上，自行车手飞驰着超越了一辆辆汽车，靠着惯性一路疾冲下山。
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Smith's freewheeling but entirely focused sonic vision.
来自BBC
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He has given up his freewheeling lifestyle to settle down with his baby daughter.
他放弃了自由放纵的生活方式，和幼小的女儿安顿下来。
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An advertising agency or a freewheeling startup might be a better fit.
对这样的人来说,广告公司或者自由工作者会更为适合.
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She accepts differences and freewheeling debate in Tunisian politics and society.
来自VOA
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His freewheeling embrace did not include it.
来自NEWYORKER