Limit of impurities
[化] 杂质极限; 杂质限度
🧩 词语组成解析
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];
n. 杂质（impurity的复数）
🗣️ 情景例句
Uh, in a way.
嗯，是呀。
Has your company done any research in this field?
请问贵公司对此范畴做了任何研究吗？
And I advise you not to eat fruit that isn't ripe in future.
还有，我劝你今后不要吃不熟的水果。