Acidity of petroleum product
[机] 石油产品的酸度
🧩 词语组成解析
acidity
[ə'siditi]
n. 酸性;<化>酸性;<医>胃酸过多;（言词等的）类刻;
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
I can believe that. One good thing about ping pong is that it doesn't need much space.
我几乎不敢相信。乒乓球最大的好处是不占地方。
She's always helping people.
她总是帮助别人。[现在进行时]
at any rate for short periods -- that running, jumping and kicking a ball are tests of national virtue.
至少在短期内如此 -- 跑跑、跳跳、踢踢球是对一个民族品德素质的检验。