The experts that we spoke to say the way to go is pre-casted cement wall panels.

我们采访的专家说，要走的路是预先浇铸的水泥墙面板。

There's dust on the floor, the wall panels have been stripped, the tables are bare.

地板上满是灰尘，墙板已被剥落，桌子上光秃秃的。

He rushed to the bellpull, slid back the wall panel, and, plunging in his hand, pulled out a photograph and a letter.

他冲向门铃，拉开墙板，伸手掏出一张照片和一封信。