也沿用了这个含义。 There’s some really high-grade (= high quality) musicianship on this recording. 这张唱片体现出高超的音乐技能。 Steve never studies, but he always gets good grades. 史蒂夫从来不学习，可成绩总是很不错。

Please explain “the great leveler” and this sentence: “Retailers will have to adjust to the web, the great leveler.” My comments: That means retailers will have to learn to compete with one another ...