绿州的英文：
oasis

The town is an oasis of prosperity in a desert of poverty.
该镇是贫穷荒漠中的一块繁荣的“绿洲”。

There is an oasis on the vast and bare expanse of the desert.
在广漠的沙漠里有一片绿洲。

The travellers found that the oasis was only a mirage.
旅行者发现绿洲只是海市蜃楼而已。

The Columbia campus is a beautiful oasis on the West Side of Manhattan.
哥伦比亚大学校园是曼哈顿西部的一个美丽绿洲。

Mr. Cremona's barbershop was an oasis of beauty and good will
老克的理发店恍如一块美丽亲善的绿洲。