| 单词 | ascertain |
| 释义 | Word Frequency ascertain(ˌæsəˈteɪn) verb (transitive) 1. to determine or discover definitely 2. archaic to make certain Derived forms ascertainable (ˌascerˈtainable) adjective ascertainably (ˌascerˈtainably) adverb ascertainment (ˌascerˈtainment) noun Word origin C15: from Old French acertener to make certain |
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