英语解释:Considerable modification of the existing system is needed.
需要对现有的系统进行相当大的改进。
the act or process of changing sth in order to improve it or make it more acceptable; a change that is made 修改;改进;改变
英语解释:Considerable modification of the existing system is needed.
需要对现有的系统进行相当大的改进。
the act or process of changing sth in order to improve it or make it more acceptable; a change that is made 修改;改进;改变
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