colgrout

例句：

1. 1. The construction crew was busy mixing and pouring the new colgrout for the foundation.
   建筑队忙于混合和浇筑新混凝土以加固地基。
2. 2.The engineer used a special colgrout to repair the damaged part of the bridge.
   工程师使用一种特殊的混凝土来修复桥梁受损的部分。
3. 3.The builders poured the colgrout into the molds and waited for it to harden.
   建筑工人将混凝土倒入模具中，等待它硬化。