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1·She earned her grades through sheer hard work.

她的学习成绩完全是靠刻苦用功得来的。《牛津词典》

2·Some 20 percent of grades are awarded for coursework.

课程作业占分数的20%左右。《柯林斯英汉双解大词典》

3·Most of our students attained five 'A' grades in their exams.

我们多数学生的考试成绩是五个优。《牛津词典》

4·The average price for all grades of petrol at the pump was $3.49 a gallon.

加油泵所有等级的汽油平均价格为1加仑3.49美元。《柯林斯英汉双解大词典》

5·Be aware of the terrible strain it can put on a child when you expect the best grades.

当你期盼最佳成绩时，要意识到这可能给孩子带来的可怕压力。《柯林斯英汉双解大词典》

6·I forgot all about the ring. Which just goes to show that getting good grades in school doesn't mean you're clever.

我完全忘了戒指的事情。这证明在校取得好成绩并不意味着你就聪明。《柯林斯英汉双解大词典》

7·Grades don't mean everything.

成绩不代表一切。

8·The school has twelve grades.

这所学校有十二个年级。

9·Grades are just silly letters.

成绩只不过是无聊数字。

10·It's about your test grades.

是关于你的考试成绩的。

等级

1·The average price for all grades of petrol at the pump was $3.49 a gallon.

加油泵所有等级的汽油平均价格为1加仑3.49美元。《柯林斯英汉双解大词典》

2·Milk is sold in grades.

牛奶是分等级出售的。

3·Messages are sent to the highest ranked queue or queues, and so this granularity allows queues to be ordered to indicate grades of application availability.

消息被发送到级别最高的一个或多个队列，因此这个细粒度允许对队列排序，以表明应用程序可用性的等级。

4·You can't see the difference between these grades.

你可以看看这些等级的差别。

5·That entitled Ellison to an a ring, which the Chronicle said was the highest of four grades of ring that about 400 people affiliated with the team received -from players to ballpark staff.

这让他有资格获得“一级”的指环，《旧金山纪事报》指出，巨人队约400人的团队，从球员到球场工作人员，收到的指环分为四个等级，埃里森的是最高级别。

分数

1·I should say something about grades.

关于分数我应该说明一下。

2·Your course load is set, your grades are set, your test scores are set.

你的课程负荷已经确定了，你的分数已经确定了，你的考试成绩也已经确定了。

3·This could be the reason why students who sit here often get lower grades on tests and exams.

这可能就是为什么坐在这里的学生经常在考试中得到较低的分数的原因。

4·If a kid's grades are low, Mick requires a teacher's note saying that you're doing your best, Mick says.

如果一个孩子的分数很低，米克就会要求老师给他一张便条来“说你已经尽力了。”米克说。

5·What's more, grades are not only an educational device but are also part of a screening system to help assign kids to their next class or program.

更重要的是，分数不仅是一种教育手段，也是一个筛选系统的一部分，帮助我们把孩子分配到他们的下一个班级或课程。

(1)high grade高品位；高级的

(1)top grade优级，最高级

(1)low grade低级的；低质量的

(1)first grade一年级；第一级；一等品

(1)at grade在同一水平面上；同一平面

(1)food grade食品级