theorist

US /ˈθiərɪst, ˈθɪrɪst/

UK /ˈθɪərɪst/

B2 中高級
n. (c.)可數名詞理論家
My friend is a theorist who proves mathematical theories

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BBC 6 Minute English June 30, 2016 - Get on with it!

06:07BBC 6 Minute English June 30, 2016 - Get on with it!