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| 单词 | certification |
| 释义 | certificationcer‧tif‧i‧ca‧tion /səˌtɪfɪˈkeɪʃən $ sər-/ noun 1[countable, uncountable] an official document that says that someone is allowed to do a certain job, that something is of good quality etc: We successfully completed the certification for open water diving.2[uncountable] the process of giving someone or something an official document that says they are allowed to do a certain job, that something is of good quality etccertification of certification of competence |
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