| 释义 |
past mastern.（名词）abbr. PM, P.M.【缩写】- One who has formerly held the position of master in an organization, especially a social one such as a lodge or club.前会长：曾在一个组织，尤指社交组织，如分会或俱乐部中正式任首领的人
- One who is thoroughly experienced and skilled in a particular craft or activity.内行，老手：对于某种特定的技能或活动十分有经验或十分有技术的人
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