[] connected with the end of a project, a process, an investment, a period of time, etc.后期的◆back-end royalties后期版税◆back-end charges后期费用 () used to describe a program or part of a computer system that is not seen or used by the user, especially in e-commerce后台的（尤指电子商务中，用于描述不是用户所见或使用的程序或计算机系统部分）◆a back-end database后台数据库➡front end