In turn, international tourism became the concern of a number of world governments since it not only provided new employment opportunities but also produced a means of earning foreign exchange.

反之，国际旅游业也引起了一些国家政府的关注，因为它不仅提供了新的就业机会，而且创造了赚取外汇的手段。

The mining companies point out the huge benefits the project brings in terms of employment, tax revenue and foreign exchange.

这两家矿业公司指出了这一项目在就业、税收与外汇方面带来的庞大利益。

And so, as its use as a medium becomes more widely known, this use feeds upon itself, until rapidly the commodity comes into general employment in the society as a medium of exchange.

越多人知道黄油可以被用作一种交换媒介来使用，作为交换媒介的黄油的需求量也就越大，直到整个社会都把这种商品作为交换媒介来使用为止。

Even with the best technology, though, there are limits to how useful this new employment exchange can be.

ECONOMIST: The Internet: At your service | The

It is unlikely to be attractive to most employees, who would have to give up employment rights in exchange for a capital gains tax relief.

BBC: Plugging the leaks in the tax system

Confirming the full-employment picture, the labour exchange visited by Mr Zhu was eerily quiet.

ECONOMIST: China