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
Hello, it's good to see you again.
很高兴又见到你。
I'll see what I have. What do you need it for?
我来看看我有什么样的零钱。你要干嘛？
How do you keep in shape?
你怎么保持身材？