未知
Example Sentences
X記号 は数学 ではたいてい未知数 を表 す。
➥The symbol "X" usually stands for an unknown quantity in mathematics.
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➥He travels about the world gathering facts about little known countries.
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ソフイーは未知 の差 し出 し人 からまた手紙 が来 るのを心待 ちにしていた。
➥Sophie had been looking forward to getting another letter from the unknown sender.
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➥When you come across new words, you must look them up in your dictionary.
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