The experienced artisan would pass on the tricks of the trade to the apprentice.这位经验丰富的工匠会将这一行的诀窍传授给徒弟。Let me show you a little trick of the trade.让我告诉你干这行的一点小技巧。Magazines often improve photographs before they print them - it's one of the tricks of the trade.杂志在刊发照片前往往要对照片进行修饰——这是一种行业手法。