prospector

n. 探矿者,投机家

The prospector panned out bits of sand and gravel scooped from the bed of a stream.

探矿者淘选从河床里挖出的少量含金泥沙和砂砾。

The farmer out his claim to all the land before the prospectors came, but it was in vain.

这位农场主在探矿者到来之前立桩标明他对所有这些土地的所有权，但这是徒劳。