Arca measurement of catalyst
[机] 催化剂表面积测定
🧩 词语组成解析
n. 槟榔树或其果实
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];
🗣️ 情景例句
He began to seek jobs in the classified advertisement column in the newspaper.
他开始从报纸的分类广告栏找工作。
I don't know the exact date.
我不知道确切的日子。
We informed him that the fissure extended for fifty years and was tow feet wide and four feet deep.
我们告诉他那个大裂缝长50码，宽2英尺，深4英尺。