委任证明

委的英语翻译：

appoint; committee; end; listless; really; roundabout; shift; throw away
trust

任的英语翻译：

allow; appoint; assume a job; let; no matter; official post

证明的英语翻译：

prove; certify; argue; demonstrate; justify; manifest; testify; vouch
【计】 proofness; proving
【化】 proofing
【医】 certificate; certify; proof
【经】 attest; attestation; authenticated; authentication; certification
certify; testimony