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
She was playing with the idea of studying abroad.
她有出国留学的念头，但并非很认真。
Who is a social worker for the City of Los Angeles.
她是洛杉矶市政府的社会工作者。
Are you free this Saturday?
你这个星期六有空吗？