Ground crews ready to stop their foe with lines built by hand tools, sweat and strength.

地面人员准备用手工工具、汗水和力量构建的防线来阻止他们的敌人。

Now, modern-day woodworkers are working with hand tools like workers from the Middle Ages to put together the new roof.

现在，现代木工正在用中世纪的工人用的手工工具来组装新屋顶。

Mary watched, but Laura handed him his tools.

玛丽看着，但劳拉把工具递给他。

A hammer, for example, is a hand tool.

例如，锤子是一种手工工具。

A " hand tool" is something that is not electric.

“手动工具” 是非电动的东西。

Hand me those tools and I'll have it done in no time.

把那些工具递给我，我马上就能搞定。

A " saw" (saw) could also be a hand tool.

“锯”（锯）也可以是一种手工工具。

Machines replaced hand tools, factories sprouted up in cities and towns, and a sharp uptick in coal combustion polluted the skies.

器取代了手工工具，工厂在城镇里涌现，煤炭燃烧量急剧增加导致了空气污染。

While carvers in other areas long ago turned to mechanical devices, the workers here use only hammers and other special hand tools.

虽然其他地区的石雕工人很久以前就开始使用机械设备，但这里的工人只使用锤子和其他特殊的手工工具。

The use of hand tools to rebuild the roof was a choice, especially since power tools would have done the work more quickly.

使用手工工具重建屋顶是一种选择，特别是因为电动工具会更快地完成工作。