Necessities
n. 必要（性）( necessity的名词复数 ); （迫切）需要; 必需品; 自然规律
🗣️ 情景例句
Please give me a general view first, will you?
首先，请给我一个大概的介绍，行吗？
We have mainly adopted some usual international practices.
我们主要采取了一些国际上的惯例做法。
By correlating markings made in various parts of the world, historians have been able to read this difficult code.
历史学家通过把世界各地留下的这种痕迹放在一起研究，终于弄懂了这种费解的代码。