The beginning and end of a written work are typically called the "introduction" and "conclusion," respectively. These terms come from the Latin words "introductio" and "conclusio," which roughly translate to "bring in" and "end," respectively.

For example, the introduction to a written work might begin with a sentence such as: "This paper aims to explore the effects of cpmate change on sea levels." The conclusion, on the other hand, might include a summary of the main points and end with a statement such as: "In conclusion, it is clear that cpmate change is having a significant impact on sea levels, and action must be taken to address this issue."

中文翻译：

一篇书面作品的开头和结尾通常被称为"引言"和"结论"。这些术语来自拉丁语"introductio"和"conclusio"，分别约等于"引进"和"结束"。

例如，一篇书面作品的引言可能以这样的句子开头："本文旨在探讨气候变化对海平面的影响。"另一方面，结论可能包括主要观点的概括，并以这样的陈述结束："总之，很明显气候变化对海平面产生了重大影响，必须采取行动来应对这一问题。"