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。