主要对问题的缘起以及相关的概念等作个交代，为后文的论述做好铺垫。
It mainly discusses the origin of the topic and related concepts, to pave the way for the account later in the paper.
主要对问题的缘起以及相关的概念等作个交代，为后文的论述做好铺垫。
It mainly discusses the origin of the topic and related concepts, to pave the way for the account later in the paper.
应用推荐