名詞 impurity:

1. worthless or dangerous material that should be removed
   同義詞：dross
2. the condition of being impure
   同義詞：impureness

1. The oxygen react vigorously with the impurity in the iron.
   氧氣與鐵中的雜質(zhì)發(fā)生劇烈的化學(xué)反應(yīng)。
2. The limestone absorb impurity from the ore and form a fluid slag which floats on the surface of the heavier molten iron.
   石灰石吸咐了鐵礦石中的雜質(zhì)，形成浮在較重的鐵水表面上的流動渣。
3. Workers are removing impurities from silver.
   工人們正去除銀中的雜質(zhì)。
4. There are some impurities in food.
   食物中有一些雜質(zhì)。

im.pu.ri.ty

n.（名詞）
【復(fù)數(shù)】 im.pu.ri.ties
The quality or condition of being impure, especially:
污點，污染：不純或不潔凈的品質(zhì)或狀態(tài)，尤指
Contamination or pollution.
玷污或污染
Lack of consistency or homogeneity; adulteration.
攙雜；不純：缺乏一貫性或同質(zhì)性；攙雜
A state of immorality; sin.
不道德的狀態(tài)；罪惡
Something that renders something else impure; an inferior component or additive.
混雜物；粗劣品：一些使得別的物質(zhì)不純凈的物質(zhì)；劣等的成分或附加物