Group (7) - Spelling Practices

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(1) (灰白的) gray or white with or as if with age; covered with grayish hair
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(2) (使均匀) equalize; become similar, as by mixing
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(3) (撞击,碰撞) infringe; advance beyond usual limit; make physical impact on; touch
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(4) (强求,不停的求) beg persistently; ask for urgently or repeatedly; annoy
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(5) (打击,挑战) dispute or contradict, often in insulting way; challenge
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(6) (符号,暗示) sign; indication; something that serves to guide, point out
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(7) (普通的,无关紧要的) having no particular interest or concern; being neither good nor bad
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(8) (不可缺少的,必需的) essential; requisite; impossible to be omitted or remitted
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(9) (独一无二的,独特的,防伪的,难以模仿的) matchless; not able to be imitated
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(10) (最初,开头) in the beginning; at first