confirm ,affirm ,assert:to state firmly and publicly that something is true断言、确言、证实(某事的真实性)
claim ,allege:to state sth.is true,even though it has not been proved,and may not be true(无充分证据的)宣称,断言
confirm ,affirm ,assert:to state firmly and publicly that something is true断言、确言、证实(某事的真实性)
claim ,allege:to state sth.is true,even though it has not been proved,and may not be true(无充分证据的)宣称,断言