Emma, the relative utility of a donation is how much good a donation does amount spent, for instance, the disease, M and D motor neuron disease was in the news in recent years and M and D charities received a windfall of donations.
艾瑪,捐款的相對效用是指捐款花了多少錢,例如,M和D運動神經元疾病近年來成為新聞,M和D慈善機構收到了大量捐款。