Premium grades
[化] 优等品
🧩 词语组成解析
n. 分数；等级（grade的复数形式）
🗣️ 情景例句
I wonder what the problem is.
我不知道发生了什么问题。
To bell
鸣叫
Very few of the fifty pence pieces and pound coins I have given him have found their way there.
我给了不少50便士的硬币，但没有几个存到储蓄罐里。