Ключевые слова: adjusting, assembly, broken, building, building activity, challenge, concepts, confusion, connection, construction, crisis, determination, global, ideas, incomplete, insight into, jigsaw, learning, maintenance, map, merging, patience, persistence, planet space, planet earth, problems, progress, puzzle, rebuilding, repairing, rescue, restoring, savings, separation, solution, stability, strategy, tenacity, union, unity, welding, world map,