证明cert: n. 〔俚语〕=certainty. a dead [a ...certification: n. 1.证明,鉴定,保证。 2.证明书的发给,执照的授 ...certs: 文档certifications of compliance: 应允证明书to file certifications with customs: 向海关申报有效证明下载手机词典可随时随地查词查翻译