1. The sea bed was scoured with powerful nets and there was tremendous excitement on board when a chest was raised from the bottom.
    他们用结实的网把海床搜索了一遍。当一只箱子从海底被打捞上来时，甲板上人们激动不已。

2. Though these large machines still exist, many of their functions have been taken over by small powerful personal computers, commonly known as PCs.
    虽然这种大计算机仍然存在，但它们的许多功能已被体积小但功能齐全的个人电脑--即我们常说的PC机--所代替了。

3. The twentieth century began with powerful countries competing to take advantage of the Earth.
    从20世纪初起，各强国竞相利用地球资源。

4. To offer peak performance in providing the electronic data and paperless trading global investors expect, Shanghai plans telecommunications networks as powerful as those in Manhattan.
    为了能给国际投资者提供其所期望的电子数据和无纸化交易的出色服务，上海计划建设与曼哈顿的网络同样强大的远程通信网络。

5. Not all the ants go out for food. Some have extra powerful jaws.
    并不是所有的蚂蚁都出去采食物. 有些蚂蚁的上下颚特别有力.

6. Not all the ants go out for food. Some have extra powerful jaws.
    并不是所有的蚂蚁都出去采食物. 有些蚂蚁的上下颚特别有力.

7. After switching on powerful arc lights, they saw great stalagmites.
    他们打开高功率弧光灯，看到了巨大的石林。

8. After switching on powerful arc lights, they saw great stalagmites---- some of them over forty feet high ---- rising up like tree-trunks to meet the stalactites suspended from the roof.
    他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。

9. A small fishing boat was carried miles out to sea by the powerful fish as it pulled on the line.
    一条小渔船被一条咬住钩的强壮的大鱼拖到了几英里以外的海面上。

10. Self-respect and a clear conscience are powerful components of integrity and are the basis for enriching your relationships with others.
    自尊和问心无愧是正直的两个重要组成部分，也是加深你与他人关系的基础。