Class of pollution
[法] 污染等级
🧩 词语组成解析
class
[klæs]
n. 班;等级;阶级;种类;
vt. 把…归入某等级，把…看作（或分类、归类）;把…编入某一班级;
adj. 很好的，优秀的，出色的;
vi. 属于…类（或等级），被列为某类（或某级）;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
Now comes the good part.
现在最精彩的部分来了。
Better an open enemy than a false friend.
明枪易躲，暗箭难防。
This shows how long it was before we deemed it necessary to make sure that all our children could share in the knowledge accumulated by the'happy few' during the past centuries.
这说明，经过了多么漫长的时间之后，我们才认识到，有必要确保我们的孩子享有多少个世纪以来由‘少数幸运者’所积累起来的知识。