You need a powerful saw to cut through metal.

切割金属需要用功率大的锯。

《牛津词典》

What they saw at the McKees Rocks, Pa., metal service center was a lot of repetitive, tedious, and sometimes strenuous operator movement around the shear.

他们在宾夕法尼亚州的McKees Rocks金属服务中心看到许多操作工人围着剪板机在进行重复、枯燥和费力的工作。

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In his now-famous experiment, he sent a kite with a metal key tied to the string up into a thunderstorm. When he saw sparks leap from the key, his hunch about lightning was confirmed.

本杰明·富兰克林在1752年发现闪电实际上就是电，在他那个著名的实验中，富兰克林将一只栓有金属钥匙的风筝放飞到雷暴之中，当他看见钥匙上火花四溅时，他关于闪电的猜想得到了证实。

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Near the trees he saw a shining piece of metal.

VOA: special.2010.03.20

As they drove to their house, instead of trees and a neighborhood, they saw a valley of metal and ash.

CNN: Looking for hope in the ashes

For any given good, be it a metal lathe or a silicon-wafer saw, most potential buyers will not have access to a physical auction.

ECONOMIST: The new old thing

The precious yellow metal saw strong safe-haven investment demand after the U.S. got a credit downgrade late Friday and as the European Union attempts to contain its own escalating debt crisis.

FORBES: Comex Gold Soars to Record High Above $1,722 as Traders Flee to Safe-Haven Assets