There are many ways to make the opening personal, but personal in this case does not mean a long self-introduction about your background complete with org charts or why you are qualified to speak.

有很多方法可以使展示的开始显得人性化，但人性化并不意味着做一个长长的自我介绍，或者用组织结构图介绍自己的背景，或者说明你为什么有资格在这里进行展示。

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The main purpose of the introduction is to provide the necessary background or context for your research problem.

引言的主要目的是为你的研究问题提供必要的背景。

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After a brief introduction, Paul declares that all humans regardless of background or nationality, are sinners and thus are not able to have a relationship with God. (1:18-3:20).

简短的介绍之后，保罗宣称人无论什么背景或者何种民族通通都是罪人，并且因此同上帝分离(1：18 - 3：20)。

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