Charge = 收费(一般当动词)e.g. He charged me 20 bucks for activating my account.Price = 价钱,代价(名词)e.g. 1) The price(价钱)for that dress is more than I expected.2) Pulling an all-nighter (熬夜)is a price (代价) I have to pay for procrastinating my homework.Fee = 费用 (名词)e.g. The fee for my college application was 100 dollars.