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 4000 Duolingo (R) - Spelling Practices
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n. 雷达 measuring instrument to detect distant objects by microwave


Spelling Word: radar
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a. 发光的,荣光焕发的 brilliant; obviously very happy, or very beautiful


Spelling Word: radiant
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a. 褴褛的,破烂的 torn; worn; having an irregular surface or edge; uneven or jagged in outline


Spelling Word: ragged
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n. (食物等的)配给 a system of limiting the amount of something that each person is allowed to have


Spelling Word: rationing
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n. 食谱,处方 medical prescription; a set of directions for making or preparing something, especially food


Spelling Word: recipe
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n. 绕线筒,线轴,磁带盘,卷轴 frame with radial arms, or a kind of spool, turning on axis, on which threads or lines are wound


Spelling Word: reel
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v. 预演,排练 practice; drill; engage in preparation for a public performance


Spelling Word: rehearse
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v. 拒斥,击退,严拒 force or drive back; drive back; refuse; disgust


Spelling Word: repulse
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n. 资源,财力,办法,智谋 materials; abilities; available source


Spelling Word: resource
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n. 责任,职责 duties; obligation; state of being responsible, accountable, or answerable


Spelling Word: responsibility