1·They had to cross the river if they wanted to get to the gold mine.
如果他们想去采金矿，就必须过河。
2·A typical assignment for Srivastava goes like this: a mining company has multiple samples from a potential gold mine.
斯利瓦斯塔瓦所接受的典型的任务是这样的：一个煤矿公司提供一个潜在的金矿的很多样本。
3·"There's a gold mine in waste heat, if you could convert it, " he says.
“废弃的余热是一座金矿，如果你可以让它实现转换的话，”他说。
4·The next target is a gold mine.
下一个目标则是接管金矿。
5·Information retrieved from laptops after the raid on the camp in Ecuador was an intelligence gold mine; officials say the new find is 11 times as big.
自厄瓜多尔军营袭击后，从发现的笔记本电脑上获得的情报是一个金矿，官方这一新发现是以前的11倍大。