| 词汇 | assurance |
| 词根词缀 | 词源： late 14c., "certainty," from O.Fr. asseurance (11c., Mod.Fr. assurance) "assurance, promise, truce, certainty," from asseurer (see assure). Meaning "promise, pledge" in Eng. is from late 14c. The word had a negative tinge 18c., often suggesting impudence or presumption. 词根记忆： n. 保证,担保;确信,断言;信心,信念He answered the questions with assurance.他胸有成竹地回答问题. n. 保证(assure+ance)[sur=sure,表示"肯定"] |
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