Don't worry about it. It's a taken of my appreciation for your business, and friendship.
没关系的。这是向你表示我们在生意及友谊上的一点心意。
The boss is waiting in his office for us to come and explain why we failed to finish this work on time.
老板在他的办公室里等着我们前去说明未能按期完成这个工作的理由。