背刺，网络流行语，在游戏中，这个词源自游戏《Dota》中隐形刺客的技能，指某个职业、英雄的技能，简单的说就是“背后一击”，在别人不注意的时候给予一个致命的打击。现实中可以理解为背后捅刀子。
Backstab, an internet buzzword, originates from the skill of the stealth assassin in the game Dota. It refers to a skill of a class or hero, and simply means “a strike from behind,” delivering a fatal blow when someone is least expecting it. In real life, it can be understood as stabbing someone in the back.
校服（拼音：xiào fú）是学校规定的统一样式的学生服装，中小学学生普遍穿着。校服最早起源于欧洲。学校为了规范管理，统一的着装。
School uniforms (pinyin: xiào fú) are uniform student clothing prescribed by the school and are generally worn by primary and secondary school students. School uniforms first originated in Europe. In order to standardize management, schools have uniform clothing.
通货膨胀（简称“通胀”）一般指：在纸币流通条件下，因货币供给大于货币实际需求，也即现实购买力大于产出供给，导致货币贬值，而引起的一段时间内物价持续而普遍地上涨现象。
Inflation generally refers to: under the condition of paper currency circulation, the currency supply is greater than the actual demand for currency, that is, the actual purchasing power is greater than the output supply, resulting in currency depreciation, which causes the phenomenon of continuous and general price increases over a period of time.
人工智能（英语：artificial intelligence，缩写为AI），亦称机器智能，指由人制造出来的机器所表现出来的智能。通常人工智能是指用普通计算机程序来呈现人类智能的技术。同时，随着医学、神经科学、机器人学及统计学等方面的发展，普遍认为人类的部分职业也逐渐被其取代。
Artificial intelligence (AI), also known as machine intelligence, refers to the intelligence displayed by machines created by humans. Generally speaking, artificial intelligence refers to the technology of presenting human intelligence with ordinary computer programs. At the same time, with the development of medicine, neuroscience, robotics and statistics, it is generally believed that some human occupations are gradually being replaced by it.