天文發展顛覆觀念
The idea that the Earth is spherical and revolves around the Sun within the solar system is accepted by most people today.
地球是圓的並在太陽系中繞太陽公轉的觀念現在已被大多數人所接受。
spherical (adj.)球形的,球狀的；sphere (n.)球體revolve (v.)旋轉,繞…旋轉；evolve (v.)演變,進化solar (adj.)太陽的,使用太陽能的
But it didn’t always use to be that way. In ancient and even medieval times, many people across the world still thought the Earth was flat.
但情況不一直是這樣的，在古代甚至是中世紀時期，世界上很多人仍覺得地球是平的，
medieval (adj.)中世紀的
This idea is called the ‘Flat Earth Theory’.
這種觀念被稱為「地平說」。
During the Iron Age, Germanic and Norse people saw the Earth as a landmass held together by the roots of Yggdrasil, the world tree.
在鐵器時期，日耳曼和北歐人將地球視為由世界之樹的根所支撐的陸塊。
age (n.)時期,時代；the Victorian Age 維多利亞時期；the modern age 現代
In traditional Chinese astronomy up until the 17th century, the main belief was that Earth was flat and square, while the heavens were round.
在中國傳統天文學中，一直到17世紀，主要還是認為地球是平且方的，而天空是圓的。
astronomy (n.)天文學；astrology (n.)占星學；astronomer (n.)天文學家
In Greece, the development of astronomy brought a different picture.
在希臘，天文學的發展帶來不一樣的情況。
development (n.)發展；develop (v.) 發展
Pythagoras first stated that the Earth was spherical in the 6th century BC.
畢達哥拉斯在西元前6世紀首先說地球是球狀的。
state (v.)陳述,說明；BC=Before Christ 西元前
By 330 BC, Aristotle was able to provide a rough estimate of the circumference of the Earth.
到了西元前330年，亞里斯多德已能大致估算地球的圓周。
be able to 能夠~estimate (v.)(n.)估計,估算；a rough estimate=an approximate estimate大致的估算；an accurate estimate 精確的估算
Nowadays, the flat Earth theory is only entertained by conspiracy theorists relying on non-scientific evidence.
現今，基於非科學證據的地平說只被陰謀論者所接受。
conspiracy (n.) 陰謀,密謀rely on依靠,依賴evidence (n.)證據；a piece of evidence 一項證據
However, popular media, including cinema, literature, and video games, like to play with this imagery when creating fantasy worlds.
然而，大眾媒體、包括電影、文學和電玩在創造虛幻世界時仍運用這個意象。
media (n.)媒體；medium(單數)mainstream media主流媒體fantasy (n.)幻想,想像,奇幻文學