but some day, ways will be found of digging out the huge mineral treasures that lie hidden within these mountains.但总有一天我们会找到方法来挖掘埋藏在雪山之下的巨大矿石宝藏

dig out:挖出, 查出

He was dug out from under the avalanche.

他被人从坍崩的雪堆中挖出来。

It is not easy to dig out the past.

发掘过去的历史是不容易的。

But it's not the prospect of getting rich that makes men sign up for this patrol,it's the chance for the journey of a lifetime.人们不是为了发财才加入巡逻队，这是绝无仅有的冒险之旅。

sign up for:登记注册, 登记报名

Who is eligible to sign up for a membership?

谁有资格报名参加会员?

He signed up for a voyage to India.

他签约参加到印度的航行。

get rich:投机致富的

Many a man has tried to get rich without success.

许多人力求发财但都未成功。

You can't get rich without taking risks.

人不冒险不富。