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

1.
helah perdagangan, rahsia perniagaan
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.
Dia mempelajari semua helah perdagangan daripada mentornya.
•
Knowing the tricks of the trade can save you a lot of time.
Mengetahui helah perdagangan boleh menjimatkan banyak masa anda.