n.广阔的区域;扩张,展开;苍天;
例句:
The water surface was a vast expanse of gold.
水面上现出一片的金光。
how to move people and goods across its great expanse.
如何让人和商品跨越这国家辽阔的疆域
Human resource management is very important to the expanse of enterprises.
人力资源管理对企业的发展至关重要。