http://www.bbc.com/autos/story/20150727-airboard-mobility-solution-meets-circus-prop
Vocabulary
1.menace= A possible danger; a threat
2.lean = To cause to incline
3.femoral = of or relating to the thigh or femur
4.syntax=A systematic, orderly arrangement
5.giggle =to laugh nervously
6.gyroscopic = having the characteristics of a gyroscope(A device consisting of a spinning mass, typically a disk or wheel, usually mounted on a gimbal so that its axis can turnfreely in one or more directions and thereby maintain its orientation regardless of any movement of the base.)
7.intuitive = Easily understood and simple to use
8.grizzly =somewhat gray; grayish.
9.pavement =A hard smooth surface, especially of a public area or thoroughfare, that will bear travel.
10.curbless =Having no curb or restraint.
11.asphalted =a mixture of such substances with gravel, crushed rock, or the like, used for paving.
12.utopia =any real or imaginary society, place, state, etc, considered to be perfect or ideal
Expression
1.spare time
2. extra pressure
3.shaky start = uncertain or questionable
