concrete slab

例句：

1. 1.The construction workers were busy laying the concreteslabs for the new road.
   建筑工人正在忙着铺设新路的混凝土板。
2. 2. The engineer carefully measured the dimensionsof the concrete slab before pouring the concrete.
   工程师在浇筑混凝土前仔细测量了混凝土板的尺寸。
3. 3. The concreteslab was so heavy that ittook several men to lift it into place.
   混凝土板太重了，需要好几个人才能把它抬到位置上。