But the levels are far too low to make it worth opening a lunar silver mine.

可惜银的含量实在太少了，想在月球上开挖银矿那是不可能了。

youdao

Genius without education is like Silver in the Mine.

天才不受教育就像是埋在矿里的银子。

youdao

Upstream is the poisonous Berkeley pit, an open-pit mine in Butte, which was once called the Richest Hill on Earth for the quantities of gold, silver and copper mined there.

上游是有毒的伯克利矿坑，一个比尤特的露天矿。它曾经被称为地球上最富有的矿山，因为这里的金、银和铜矿数量巨大。

youdao

Fifteen dead in a gun battle in Taxco. Fifty-five more at an abandoned silver mine near that same tourist town.

VOA: standard.2010.07.02

Primary silver mine supply grew by 1% to 221.6 million ounces, accounting for 28% of global silver mine output.

FORBES: Silver Institute: Global Silver-Mine Output Rises 4% To Record High In 2012

Silver is actually a by-product of the gold and lead mining, there are few, if any, active mines that mine only silver.

FORBES: Looks Like I Picked The Wrong Week To Be A Silver Ultra Bull

The mine also contains silver, gold and molybdenum (used in steel alloys)--a common combination found in the Peruvian Andes.

FORBES: Latin Mining Via Toronto