What is it?
It's wood.
What does this mean?
It means 'to design'.
What is it?
It's steel.
What is it?
It's a fan.
What is it?
It's an engineer
What is it?
It's electrical engineering
What is it?
It's plastic.
What is it?
It's a blueprint.
What does this mean?
It means revision.
What is it?
It's a bridge.
What is it?
It's a structure.
What is it?
It's civil engineering.
What is it?
It's mechanical engineering.
What is it?
It's a light bulb.
What is it?
It's electricity
What is it?
It's a metro.