Polo is very popular with the rich on the island.

No one gets rich on the river, the pilots say.

Neither look up to the rich nor down on the poor.

These natural resources make the region one of the richest on the earth.

Is there still time to get rich on the Internet?

My point is that I'm now rich on a whole different scale.

Gold's all right, but you can't get rich on it.

Each segment is rich with its own effects on the world.

They got rich on the labour of the poor people and didn't give anything in return.

Some countries wanted to keep drugs out, while others were getting rich on the trade.