Also called a "workstand," this is a support that holds your bicycle in the air to make maintenance and repair easy (and save your lower back).
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
ride a bicycle
a wheeled vehicle that has two wheels and is moved by foot pedals
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.
A periodical publication with critical articles on current events, the arts, etc
A formal assessment or examination of something with the possibility or intention of instituting change if necessary
A critical appraisal of a book, play, movie, exhibition, etc., published in a newspaper or magazine
reappraisal: a new appraisal or evaluation
look at again; examine again; "let's review your situation"
an essay or article that gives a critical evaluation (as of a book or play)