n. 1.等级，级别；阶段；程度，标准，水平。 2.〔美国〕(中小学的)年级；某一年级的学生。 3.〔pl.〕 〔美国〕小学校 (＝grade school). 4.(学校考试的)评分等级。 5.〔主美〕坡度，斜坡，倾斜度。 6.【畜牧】改良杂种。 7.【语言学】母音交替。 短语和例子 a poor grade of tea 低级茶。 grade A eggs 甲级鸡蛋。 teach in the grades 做小学教师。 at grade 〔美国〕在同一水准面上。 make the grade 1. 上陡坡。 2. 达到标准；成功。 on the down grade 走下坡路，在衰败中。 on the up grade 走上坡路，在兴盛中。 up to grade 合格。 vt. 1.定…的次序，定…的等级，给…分类，给…分级。 2.〔美国〕减缓(坡度)；【地质学；地理学】均夷；使(色调)渐浓[渐淡]。 3.给…记分数。 4.【畜牧】通过杂交改良 (up)。 vi. 1.属某种等级。 2.(颜色等)渐次调和[变化]。
a variety of cattle produced by crossbreeding with a superior breed
the gradient of a slope or road or other surface; "the road had a steep grade"
a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree" 同义词：degree, level,
the height of the ground on which something stands; "the base of the tower was below grade" 同义词：ground level,
a number or letter indicating quality (especially of a student''s performance); "she made good marks in algebra"; "grade A milk"; "what was your score on your homework?" 同义词：mark, score,
a degree of ablaut 同义词：gradation,
a body of students who are taught together; "early morning classes are always sleepy" 同义词：class, form, course,
one-hundredth of a right angle 同义词：grad,
a relative position or degree of value in a graded group; "lumber of the highest grade" 同义词：level, tier,
determine the grade of or assign a grade to
assign a grade or rank to, according to one''s evaluation; "grade tests"; "score the SAT essays"; "mark homework" 同义词：score, mark,
assign a rank or rating to; "how would you rank these students?"; "The restaurant is rated highly in the food guide" 同义词：rate, rank, range, order, place,
level to the right gradient
例句与用法
1.
He himself had only finished the fourth grade . 他自己只上完四年级。
2.
He graded the students according to ability . 他将学生们按能力分级。
3.
A clade may contain many grades . 一个进化枝可能包括许多进化级。
4.
Well, we advertise grade a beef . 可是，咱们标着卖的是甲级牛肉。
5.
Grade cutoff is sharp within inches . 数英寸内的品位变化很急剧。
6.
The texts should be graded in order of difficulty . 课文要按难易程度编排。
7.
The disposal of the third grade spells difficulty . 出售三级品意味着有困难。
8.
He received a falling grade on the term paper . 他的学期论文得了个不及格分数。
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