Gamma is the third letter of the Greek alphabet. In Greek it looks like Γ when it is big and γ when it is small, and people say it “GAM-uh.” Greek letters are used as names and labels in science and maths, so you will also hear gamma in longer names, like gamma rays — but those names start from this letter, the way “B” is just a letter until someone says “B vitamin.” In school, gamma is simply the third one, after alpha and beta.

Gammagamma(這個字母) is the third letter of the Greek alphabet是希臘字母的第三個字母. In Greek it looks like Γ when it is big在希臘文裡大寫寫成Γ and γ when it is small小寫寫成γ, and people say it “GAM-uh.”唸法是「GAM-uh」 Greek letters are used as names and labels in science and maths希臘字母在科學和數學裡常被拿來當名稱和標記, so you will also hear gamma in longer names, like gamma rays所以你也會在比較長的名稱裡聽到gamma，像gamma rays(伽瑪射線) but those names start from this letter但那些名稱都是從這個字母延伸出來的, the way “B” is just a letter until someone says “B vitamin.”就像「B」原本只是個字母，直到有人說「B vitamin」(B群維生素) In school, gamma is simply the third one, after alpha and beta.在學校裡，gamma就只是排在alpha、beta之後的第三個字母

It is a learned word from Ancient Greek, at home in classrooms, not in the market.

It is a learned word from Ancient Greek這是一個源自古希臘文的書面用字, at home in classrooms常出現在教室裡, not in the market不會出現在菜市場裡

Though actually, English keeps the Greek name rather than turning it into an everyday letter like A, B, C.

Though actually不過其實, English keeps the Greek name英文保留了希臘文的名稱 rather than turning it into an everyday letter like A, B, C而不是把它變成像A、B、C那樣的日常字母