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
I can tell.
我能觉察到。
Nothing is impossible (or difficult) to the man who will try.
天下无难事，只怕不努力。
People are always talking about 'the problem of youth'.
人们总是在谈论“青年问题”。