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
Whose turn is it to wash the dishes today?
今天轮到谁洗碗？
This country is localed on the continent of Africa.
这个国家位于非洲大陆。
I have just moved to a house in Bridge Street.
我刚刚搬进了大桥街的一所房子。