Hcb
abbr. hard-covered book 精装书; hard-core base 核心基地; hollow concrete block(s) 空心水泥砖; heating and cooling of buildings 建筑物的保暖和降温
🗣️ 情景例句
Oh, yes.
噢 ，是的。
The sales of our products have grown astronomically.
我们的产品销售量获得了极大的增长。
If a nation is essentially disunited, it is left to the government to hold it together.
如果一个国家实际上处于分裂状态，使之联合起来就是政府的事了。