Based on the need to meet all kinds of people, of various structures, roads, bridges, buildings, landscape, urbanism and urban environment as well as the principles of non-fields, public works, agriculture, food, nutrition, physics, chemistry, biology, electrical, electronics science, such as aircraft, ships, automobile, motor, technical and social fields, such as business machines, specializing in a particular kimse.dir trained. The modern sense of engineers, technicians and technicians apply the theoretical knowledge produced by scientists into practical knowledge people. Engineer

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police =He is a policeman They catch the murderer , crimeminister and pimps. Their job is hard

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