fixed charge

名词 fixed charge:

1. a periodic charge that does not vary with business volume (as insurance or rent or mortgage payments etc.)
   同义词：fixed cost, fixed costs

1. A fixed charge or tax for a privilege, especially for passage across a bridge or along a road.
   费用，通行费获得某种特权所要交的固定费用或税款，特别是为了通过一座桥梁或一条道路