名詞 dross:

1. worthless or dangerous material that should be removed
   同義詞：impurity
2. the scum formed by oxidation at the surface of molten metals
   同義詞：slag, scoria

1. The best player go off to the big club, leave us the dross.
   最好的隊員都投奔大俱樂部去了，就只給我們剩下些不中用的人。
2. The best players have gone off to the big clubs, leaving them the dross.
   最好的隊員都投奔大俱樂部去了，留給他們這些不怎么樣的球員。

dross

n.（名詞）
A waste product or an impurity, especially an oxide, formed on the surface of molten metal.
廢料或混雜物，尤指在融化金屬表面形成的氧化物
Worthless, commonplace, or trivial matter:
凡物：沒有價值、平凡或鎖碎的事物：
例句：
.He was wide-awake and his mind worked clearly, purged of all dross.(Vladimir Nabokov)
.他毫無睡意，腦子思維清楚，沒有任何雜念.(弗拉基米爾·納博科夫)

來源：
Middle English dros
中古英語 dros
from Old English drôs [dregs]
源自 古英語 drôs [殘渣]

【引伸】
dross.y
adj.（形容詞）