tricks of the trade
US /trɪks əv ðə treɪd/
UK /trɪks əv ðə treɪd/

1.
行業訣竅, 秘訣
clever methods or special techniques used by people in a particular profession or activity, often not widely known
:
•
He learned all the tricks of the trade from his mentor.
他從導師那裡學到了所有的行業訣竅。
•
Knowing the tricks of the trade can save you a lot of time.
了解行業訣竅可以為你節省大量時間。