改良费用

【经】 betterment expense

改良的英语翻译：

improve; ameliorate; amend; meliorate; mend; reform
【经】 improve; improvement

费用的英语翻译：

charge; cost; expenditure; expense; fare; fee; outlay; rate
【经】 charge; charges; cost; expenditure; expense; outgoings; outlay