| 单词 | grade |
| 释义 | grade /grayd/, n. , v. , graded, grading. n. 1. a degree or step in a scale, as of rank, advancement, quality, value, or intensity: the best grade of paper. 2. a class of persons or things of the same relative rank, quality, etc. 3. a step or stage in a course or process. 4. a single division of a school classified according to the age or progress of the pupils. In the U.S., public schools are commonly divided into twelve grades below college. 5. the pupils in such a division. 6. grades, elementary school (usually prec. by the): He first began teaching in the grades. 7. a letter, number, or other symbol indicating the relative quality of a student's work in a course, examination, or special assignment; mark. 8. a classification or standard of food based on quality, size, etc.: grade A milk. 9. inclination with the horizontal of a road, railroad, etc., usually expressed by stating the vertical rise or fall as a percentage of the horizontal distance; slope. 10. Building Trades. Also called grade line. the level at which the ground intersects the foundation of a building. 11. an animal resulting from a cross between a parent of ordinary stock and one of a pure breed. 12. Math. grad2. 13. at grade, a. on the same level: A railroad crosses a highway at grade. b. (of a stream bed) so adjusted to conditions of slope and the volume and speed of water that no gain or loss of sediment takes place. 14. make the grade, to attain a specific goal; succeed: He'll never make the grade in medical school. 15. up to grade, of the desired or required quality: This shipment is not up to grade. v.t. 16. to arrange in a series of grades; class; sort: a machine that grades two thousand eggs per hour. 17. to determine the grade of. 18. to assign a grade to (a student's work); mark: I graded forty tests last night. 19. to cause to pass by degrees, as from one color or shade to another. 20. to reduce to a level or to practicable degrees of inclination: to grade a road. 21. to cross (an ordinary or low-grade animal) with an animal of a pure or superior breed. v.i. 22. to incline; slant or slope: The road grades steeply for a mile. 23. to be of a particular grade or quality. 24. to pass by degrees from one color or shade to another; blend: See how the various colors grade into one another. 25. grade up, to improve (a herd, flock, etc.) by breeding with purebreds. [1505-15; < F: office < L gradus step, stage, degree, deriv. of gradi to go, step, walk] Syn. 16. classify, rank, rate, order, categorize. |
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