Gold is the only metal that doesn't rust, even if it's buried in the ground for thousands of years.

黄金是唯一的一种不生锈的金属，即使把它埋在地下几千年之久。

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In addition, the adjustment regulator also ensures that only metal parts that are in motion will be detected.

此外，监管机构的调整也保证了只有金属零件的运动，才会被发现。

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He put his wiper control in a red metal box that on the outside had the words "For Engineering Tests Only. Do Not Open.".

他将刮水控制器放置在一个红色的金属盒子里，上面写道 “工程测试专用，切勿打开。”。

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Only a few headstones survive, but small metal signs mark the graves.

VOA: special.2010.02.15

Now only about "There is change in some people traditionally expected platinum to be an expensive metal, people are looking at it in the same terms as gold values,"

VOA: standard.2009.10.17

There is no plastic, no wood, no carpeting, only metal and leather and some rubber mats.

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There were soldiers pouring out of these trucks, but they were armed only with metal detectors.

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The initial impact was weakness, with lead the only base metal finding improved demand, likely supported by the immediate need for batteries.

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