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
He's so funny.
他喜欢开玩笑。
No one can call back yesterday;Yesterday will not be called again.
昨日不复来。
The answer is zero.
白忙了。