A: How about going to the beach with us this weekend? B: I can’t. I have to pull in some overtime. A: Why? B: Our company’s new product has sold well in first-tier cities. But the smaller cities’ market is a tougher nut to crack. The boss has asked us to make modifications and come up with a more affordable model. Note: “A tough nut to crack” means a person or thing that presents difficulties. Just imagine a dry fruit consisting of an edible kernel or meat enclosed in a woody or leathery shell. It’s not easy to crack the nut and eat its kernel. |