Scientists wondered whether the human dietary change affected the behavior of local hyenas .
科学家想知道人类饮食的变化是否影响到了当地鬣狗的觅食。
If dietary changes don 't work , ask your doctor about giving them an over-the-counter stool softener .
如果饮食的规定不起作用，问你医生要非处方药的排便剂。
And now this animal model shows maybe there is long-term dietary involvement that could lead to less plaques .
而且这个动物的模型显示，长时间饮食的参与，可能才能导致脂肪斑块减少。
Dietary studies can be unreliable , since so many complicating factors can influence results , and it is difficult to pinpoint cause and effect .
对饮食的研究有时并不可靠，因为很多复杂的因素都能对结果产生影响，并且很难找出原因和影响。
It 's usually diagnosed in infants and treated with dietary restrictions , which must be started early in life to prevent brain damage and other problems .
