prep. On; -- used in all the senses of that word, with which it
is interchangeable.
常见例句
1
This is the reverse of a priori reasoning. Applied to knowledge which is based upon or derived from facts through induction or experiment
2
baying of dogs upon their prey
3
to imprecate misery or evil upon
4
An isolated point not upon a curve, but whose coordinates satisfy the equation of the curve so that it is considered as belonging to the curve.
5
One of the small pedestals, for statues or other ornaments, placed on the apex and at the basal angles of a pediment. Acroteria are also sometimes placed upon the gables in Gothic architecture. n