Density of gases
[机] 气体密度
🧩 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. 气体
🗣️ 情景例句
so experienced in the construction trade,
在建筑这一行业经验丰富
A house divided against itself cannot stand.
家庭内讧难维系。
That was a long time ago,wasn't it?
那是好久以前的事了。是吗？