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
We must prepare ourselves to have a hard time.
我们必须准备过艰苦的日子。
Why did the company demand his resignation?
为什么公司命令他辞职呢？
It seems that the further cats fall, the less they are likely to injure themselves.
看起来，猫跌落的距离越长，它们就越不会伤害自己。