Area measurement of catalyst
[化] 催化剂表面积测定
🧩 词语组成解析
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
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
Thanks.
谢谢你。
I came here when I was 20.
我二十岁来这儿。
He did not see the bag until it was too late.
等他看见袋子时已经太晚了。