友情提示：看不懂音变的同学请听203-206期，基础知识不再啰嗦，课程加速前进

octopus oct+o+pus-foot
(plural octopuses) a sea creature with a soft round body and eight long TENTACLES (= long thin parts like arms), that is sometimes used for food
n. 章鱼

例句:
If you lived in the Mediterranean, for instance, you would consider octopus a great delicacy.
比如，如果你住在地中海地区，你会把章鱼视作是美味佳肴，

October
the tenth month of the year, after September and before November:
n. 十月

词源小故事
[OE] The Romans calculated the beginning of their year from March, and so the eighth month was called octōber or octōbris mēnsis, literally ‘eighth month’ (terms derived from Latin octō ‘eight’). Other English words derived from Latin octō or its close Greek relative októ include octagon [17], octane [19], octave [14], octet [19], and octopus [18] (from Greek októpous, literally ‘eightfoot’).

pedology
The study of the physical and mental development and characteristics of children.
The scientific study of soils, including their origins, characteristics, and uses.
n. [美国英语]儿童发育学，婴儿学 ；土壤学

pediatrist
a specialist in pediatrics
n儿科医生

pedant
(disapproving) a person who is too concerned with small details or rules especially when learning or teaching
One who exhibits one's learning or scholarship ostentatiously
n. 学究；书呆子；卖弄学问的人；空谈家

pedantry
the character, qualities, practices, etc., of a pedant, esp. undue display of learning.
slavish attention to rules, details, etc.
an instance of being pedantic: the pedantries of modern criticism.
n. 卖弄学问；假装学者;迂腐

耶鲁公开课 - 政治哲学导论课程节选
Furthermore it would seem that the study of the great books or great thinkers of the past can easily degenerate into a kind of antiquarianism into a sort of pedantry.
更甚之,研究这些巨著或过往的伟大思想家,更可能轻易地降格为古物癖,或是卖弄学问。

Wikipedia

Wiki一词来源于夏威夷语的“wee kee wee kee”，原本是“快点快点”的意思。在这里WikiWiki指一种超文本系统。这种超文本系统支持面向社群的协作式写作，同时也包括一组支持这种写作的辅助工具。

维基百科（英语：Wikipedia，是维基媒体基金会的商标）是一个自由、免费、内容开放的百科全书协作计划，参与者来自世界各地。这个站点使用Wiki，这意味着任何人都可以编辑维基百科中的任何文章及条目。维基百科是一个基于wiki技术的多语言百科全书协作计划，也是一部用不同语言写成的网路百科全书，其目标及宗旨是为全人类提供自由的百科全书──用他们所选择的语言来书写而成的，是一个动态的、可自由访问和编辑的全球知识体。也被称作“人民的百科全书”。