时差N小时 黄金是黄色的吗?(下)

（单词翻译）

If most gold jewelry¹ is an alloy², why is some white and some yellow?

如果大多数黄金首饰是合金的话，为什么有的是白色有的是黄色呢？

The final appearance depends on the type of alloy metal used.

珠宝外观最终取决于所使用合金金属类型。

Alloys³ made with white metals like silver, palladium and nickel create white-colored gold.

用银、钯和镍等白色金属制成的合金为白色的黄金。

Adding some copper⁴ to the alloy will restore the yellow color, but too much copper can turn the gold reddish.

在合金中加入铜可以恢复为黄色，但是铜过量会导致黄金变红。

The color of gold jewelry doesn’t reveal how much gold is in it — a piece of white gold may have the same number of carats as a piece of yellow gold.

黄金首饰的颜色并不能看出其含金量。一块白金的含金量可能与一块黄金的含金量相同。

But, it has a different alloy metal, and so it has a different color.

由于黄金里掺有不同的合金金属，因此黄金会呈现出不同的颜色。

Unlike white gold, fool’s gold has no gold in it at all. It’s a mineral called iron pyrite.

与白金不同，愚人金根本不含任何黄金。它其实是一种叫做黄铁矿的物质。

Black gold isn’t gold either, it’s oil. Which is also valuable, but doesn’t look as good on your fiancee’s finger.

黑金也不是黄金，而是石油。黑金同样很值钱，但是戴在未婚妻手上可不那么美观。