1. The monkey threw the big stone at the crocodile.
    猴子把那块大石头向鳄鱼扔去。

2. The huge stone is so heavy that we cannot move it without a lever.
    那块巨石是如此重，我们如果不用杠杆就无法移动它。

3. This stone acts as a knife-sharpener.
    这块石头被用作磨刀石。

4. These huge stone blocks weigh an average of two and a half tons each, as much as a small car.
    这些巨大的石块平均每块重２吨半，像一辆小型轿车那样重，

5. Not a stone was left standing.
    （所有的房子）全倒塌了。（有“片瓦无存”之义。）

6. Now he has put an ugly stone head over the gate. It is one of the ugliest faces I have ever seen.
    现在他在大门上挂了一个丑陋的石雕人像。我从未见过这么丑的人头像。

7. Now he has put an ugly stone head over the gate.
    现在他把一个丑陋的石雕头像放在了大门上边，

8. Now after many centuries, the shining surface is worn away, and men have taken some of the huge blocks of stone to build other things.
    许多世纪后的今天，闪闪发光的表面已经剥落了，人们搬走了许多大石块去修建别的东西。

9. Kill two birds with one stone.
    一石双鸟。

10. Houses----often three storeys high----were built of stone.
    房子一般有3层楼高，用石块修建。