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
Yes. Yes, sir.
是的。是的。
He that knows nothing,doubts nothing.
无知即无疑。
Ah, yes, I remember now.
啊，是的，我现在记起来了。