certify

vt.（尤指书面）证明；发证书给…；证明（某人）患有精神病；颁发（或授予）专业合格证书

网络解释.证实；保证；发证书给；核证

词形变化:

过去式：certified 过去式：certified 过去式：certifying 过去式：certifies

v.1.证明,证实,确认释义下的同义词

attest authenticate depose testify to evidence confirm warrant corroborate validate verify substantiate document support certify

vt.2.证明;保证释义下的同义词

guarantee confirm vouch affirm testify