Group (A) - Spelling Practices

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(1) a. (酸的,酸性的) tasting sour like acid; being or containing an acid
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(2) a. Syn. keen; sharp(精明,敏锐,聪明) quickly perceptive; keen; having a sharp point or tip; extremely sharp or severe
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(3) n. (管理者,行政官) one who manages a government agency or department
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(4) v. Syn. estrange; transfer; separate(孤立,树敌) cause to become unfriendly or hostile; transfer property or ownership; isolate or dissociate emotionally
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(5) n. Syn. renovation; change(变更,改造) passage from one form or state to another; change
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(6) v. Syn. fasten(固定,锚) secure or fasten firmly; be fixed in place; narrate or coordinate
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(7) v. (使古旧,废弃) make obsolete or old-fashioned
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(8) a. (考古学的) related to or dealing with or devoted to archaeology
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(9) n. (考古学) study of artifacts and relics of early mankind
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(10) v. Syn. spring(出现,发生,起来,站起) come up from a lower to a higher position; come above the horizon; spring up; come into action