above your head, usually in the sky:
noun
regular costs that you have when you are running a business or an organization, such as rent, electricity, wages, etc. 经费；营运费用；经常性开支
above your head, usually in the sky:
noun
regular costs that you have when you are running a business or an organization, such as rent, electricity, wages, etc. 经费；营运费用；经常性开支