/ə'sevəreɪt; ə`sɛvə,ret/
v [Tn, Tf] (fml 文) state (sth) firmly and solemnly （坚定而郑重地）宣称, 陈词, 断言
*asseverate one's innocence/that one is innocent 坚称自己很清白[自己是无辜的].