He decided to concentrate on English because he just failed the exam.
他决心专攻英语因为他刚刚考试不及格。
It's another race to concentrate on and it has a unique challenge because of the track itself.
要关注的是这是一场比赛，而这场比赛非常具有挑战性是因为这条赛道。
He decided to English, concentrate on because he just failed the exam.
他决定专攻英语，他决定专攻英语因为他刚考试不及格。
He decided to English, concentrate on because he just failed the exam.
他决定专攻英语，他决定专攻英语因为他刚考试不及格。
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