aerated cement block的用法和样例：
- Yet they are loath to forfeit that hallmark of 20-something style, the messenger bag, to handcuff themselves to that middle-management cement block, the briefcase.
- Many of the buildings are of cement block construction and would have required extensive drilling or surface conduit installation for a hard-wired system.
- Our balcony is usually closely linked and my neighbor's, only a symbolic suspicious cement block, a squat can be cross-over, we go home boss string West, sometimes through the undefended balcony.
- The next day Ray put the cement blocks back down, only to find that the ground was too hard to keep the patio level.