But that has been hard to prove. Studies of dietary fiber and colon cancer failed to find that fiber was protective, and studies of vitamins thought to protect against cancer failed to show an effect.
关于膳食纤维与结肠癌关系的研究未能证明纤维素能起到保护作用，对于维生素能防止癌症的研究也以未能有明显的作用效果。
Research studies show that high-fiber foods can easily trim 300 or more calories off your daily intake, without your even being aware of the difference.
调查研究表明，高纤维食物可以很容易地让你不知不觉间从每日摄入量中消除掉300或更多卡路里的热量。
Last week's opening of the Shanghai auto show provided the latest data point as Buick revealed a strikingly styled SUV concept with a carbon-fiber chassis and a plug-in hybrid powertrain.
上周开幕的上海汽车展上曝出了最新的数据点：别克展示了外形亮丽、时尚的SUV概念车，该车采用碳纤维底盘，并内置有混合动力传动系统。
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