purify
/ˈpjuərɪfaɪ; `pjʊrəˌfaɪ/ v
(pt, pp -fied) [Tn, Tn.pr]
(a) ~ sth (of sth) make sth pure by removing dirty, harmful or foreign substances 使某物纯净; 净化某物
Water is purified by passing through rock. 水在穿透岩石的过程中获得了净化.
purified salts 精制的盐
The soil has to be purified of all bacteria. 要消灭这土壤的所有细菌使之净化.
an air-purifying plant, eg for providing pure air in a factory 净化空气的设备（如在工厂中用以供给新鲜空气者）.
(b) ~ sb (of sth) make sb pure by removing his sins, esp in a religious ceremony 洗刷某人的罪恶; （尤指在宗教仪式上）给某人涤罪.