Unknowns
n. 未知事件（unknown的复数）
🗣️ 情景例句
Now that the technical problems have been settled,
既然有关技术问题已经解决，
I can speak English.
我会说英语。
it would take about 700 years for half of us to die,
那么我们当中的一半人过700年才会死去，