Computer languages（CS）bear remarkable similarities with human languages．Both can be represented as strings of characters forming higher－level abstractions，－such as words（tokens in CS），sentences（statements in CS），paragraphs（functions in CS）and texts（programs in CS）．
计算机语言 （CS） 与人类语言具有显著的相似之处，两者都可以表示为形成更高级别抽象的字符字符串，例如单词（CS 中的标记）、句子（CS 中的语句）、段落（CS 中的函数）和文本（CS 中的程序）。
2. How to summarize a paragraph?
2. 如何总结一个段落？
You may follow the steps below to summarize a paragraph.
您可以按照以下步骤总结一个段落。
- Read the paragraph carefully and achieve an overall understanding of the text.
仔细阅读段落并全面理解文本。
- Figure out the main idea of the paragraph. Use topic sentence, if there is any, to help you.
弄清楚段落的主要思想。如果有的话，使用主题句来帮助你。
- Express the main idea in your own words.
用你自己的话表达主要思想。
- Check the summary. 检查摘要。
For example, the underlined sentence in the following paragraph is the topic sentence that states the main idea of the paragraph. To summarize the paragraph, we only need to paraphrase the topic sentence.
例如，以下段落中带下划线的句子是陈述段落主要思想的主题句。要总结这一段，我们只需要解释主题句。
Autonomous vehicles (AVs) have attracted considerable attention in recent years from researchers, venture capitalists, and the general public. The societal benefits in terms of safety, mobility, and environmental concerns are expected to be tremendous and have captivated the attention of people across the globe. However, in light of recent accidents involving AVs, it has become clear that there is still a long way to go to meet the high standards and expectations associated with AVs.
近年来，自动驾驶汽车 （AV） 引起了研究人员、风险投资家和公众的广泛关注。预计在安全、移动和环境问题方面的社会效益将是巨大的，并吸引了全球人们的关注。然而，鉴于最近涉及自动驾驶汽车的事故，很明显，要满足与自动驾驶汽车相关的高标准和期望，还有很长的路要走。