In basic terms concrete is made up of stones, sand, cement and water.

在基本术语中，混凝土由石头、沙子、水泥和水组成。

A " quarry" is like a mine but is on the surface of the earth and usually is used to remove large pieces of stone, sand or minerals.

“Quarry”和“mine”类似，但它位于地表，通常用来开采大块的石头、沙子或矿物。

Now, to make concrete, you mix cement with stone, sand, and other ingredients, throw in a bunch of water, and then wait for it to harden or cure.

现在，要制造混凝土， 您需要将水泥与石头、沙子和其他成分混合，倒入大量水， 然后等待它硬化或固化。