trick of the trade
行業訣竅;專業技能或秘訣
口語·分享專業經驗
英文釋義
an expert technique or method that is used in a specific profession or field
例句
My mentor taught me a few tricks of the trade for closing deals faster.
典故來源
源自中世紀手工業行會,師傅傳授給學徒的獨特技巧。