78元用英文怎么写

78 seventy eight56 fifty six yuan66 sixty six yuan82 eighty two yuan43 forty three yuan100 one hundred yuan84 eighty four yuan57 fifty seven yuan

seventy eigth

78元：seventy—eight 56元: fifty-six66 元: sixty-six82元: eighty-two43元: forty-three100元 : one hundred 84元:eighty-four57元:fifty-seven如果是人民币，单位是yuan，如果是美元，单位是dollors