The architect's brief was to design an extension which would harmonize as much as possible with the existing building.这位建筑师的指示是设计扩建部分并使之与现存的建筑尽量保持和谐。The architect's brief is to design an extension that is modern but blends with the rest of the building.设计指令是，建筑物扩建部分的设计既要现代化，又要与其余的部分保持和谐。