Primality
原始（的性质或状态）, 首要（的性质或状态）
🗣️ 情景例句
Sorry, Richard. They don't have it.
对不起 Richard 他们那里没有。
Shall we start the meeting now?
我们现在开始开会好吗？
It is only 380,000 kilometres away, and it has been visited by man already.
已经有人到过月球旅行了。