asseverationn.
ə,sevə'reiʃən
中文n. 誓言；断言；郑重声明
词根词源
asseverationasseveration: see severeasseveration (n.)1550s, from Latin asseverationem (nominative asseveratio) "vehement assertion, protestation," noun of action from past participle stem of asseverare (see asseverate).
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