Academic Words Level 4 - 1 - Spelling Practices

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(1) v. [使隶属,接纳为成员] associate; cause a group to become part of or form a close relationship with another

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(2) v. [收集,聚集] gather into a mass, sum, or whole; amount to

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(3) v. [混合,减少纯度] combine; mix; make less pure; lessen or moderate

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(4) a. [恰当的,贴切的] likely; precisely suitable; appropriate; quick to learn or understand

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(5) a. [权威,独裁] weighting authority; peremptory and dictatorial

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(6) n. [错误] serious mistake typically caused by ignorance or confusion

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(7) a. [一百周年纪念] relating to a 100-year period; occurring once every 100 years

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(8) v. [分类,按等级或类别组织安排] declare unavailable, as for security reasons; arrange or order by classes or categories

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(9) a. [必须做的,被强制的] mandatory; obligatory; required by rule

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(10) v. [计算] reckon; make a mathematical calculation