As he sipped his drink he tried out another metaphor, involving a goldpanning technique he had learned about in New Zealand.
他呷了一口酒，想再打个比喻。那是他在新西兰学到的从沙砾中筛金子的方法。
2
In goldpanning, the mixture is swirled around in a shallow pan with water, the heavier gold particles settle to the bottom and the lighter particles are washed away.
淘金时，把金矿沙放在浅盘里用水淘洗，较重的金颗粒落在盘底，较轻的颗料就被冲走。
3
Some old miners are still panning for gold in the streams.