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
We need to know about your history with animals.
我们要了解你以前与动物的关连。
Did you hear something?
你听到了什么？
The students are going to take the test in two days' time.
学生们准备在两天后就接受测验。