Aeroconcrete
加气混凝土
🗣️ 情景例句
As a matter of fact,
事实上，
He is a doctor. He has his own practice.
他是个医生，他自己开业。
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189
然而阳近一段时间，老年养老金只付给那些最穷的人，因为失业的人数一直在增长。