The Blue Book of Grammar and Punctuation
Cement, Concrete
People constantly refer to "cement" sidewalks, driveways, walls, etc. However, cement is a powder that, when mixed with sand or gravel and water, becomes concrete.
The Blue Book of Grammar and Punctuation
People constantly refer to "cement" sidewalks, driveways, walls, etc. However, cement is a powder that, when mixed with sand or gravel and water, becomes concrete.