In graph theory, a pseudoforest is an undirected graphThe kind of undirected graph considered here is often called a multigraph or pseudograph, to distinguish it from a simple graph. in which every connected component has at most one cycle.
ride a bicycle
a wheeled vehicle that has two wheels and is moved by foot pedals
A vehicle composed of two wheels held in a frame one behind the other, propelled by pedals and steered with handlebars attached to the front wheel
(fold) incorporate a food ingredient into a mixture by repeatedly turning it over without stirring or beating; "Fold the egg whites into the batter"
Bend (something flexible and relatively flat) over on itself so that one part of it covers another
Mix an ingredient gently with (another ingredient), esp. by lifting a mixture with a spoon so as to enclose it without stirring or beating
(fold) bend or lay so that one part covers the other; "fold up the newspaper"; "turn up your collar"
(of a piece of furniture or equipment) Be able to be bent or rearranged into a flatter or more compact shape, typically in order to make it easier to store or carry
(fold) an angular or rounded shape made by folding; "a fold in the napkin"; "a crease in his trousers"; "a plication on her blouse"; "a flexure of the colon"; "a bend of his elbow"
1964 Gazelle Kwikstep 1 folding-bicycle
1964 Gazelle Kwikstep 1 folding-bicycle
turn the chrome tube about 30 degrees and you can fold the bike