It is illegal for manufacturers to give their product a misleading name，or to claim that it is made

of a particular ingredient which in fact ______ only a very small proportion of the product．

制造商们把他们的产品起一个误导人的名字或者宣称这种产品由特殊成分制成，而实际上产品中仅仅含有比例极小的特殊成分，这种做法是非法的。