| 释义 |
ex.trac.tionIk5strAk7F[nn取出;提炼;精选The extraction of minerals has damaged the countryside. [U]开采矿石破坏了乡村。An extraction is the removal of a tooth.拔牙She had two extractions. [C]她拔了两颗牙。This is part of the extraction process. [U]这是拔牙过程的一部分。If someone is of a particular extraction, their family originally came from another country.祖籍She's of German/Welsh/Korean extraction. [U]她祖籍德国/威尔士/朝鲜。The college has many students of foreign extraction (= from other countries). [U]这个学院有许多外籍学生。
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