These factories have displaced tourism as the country's largest source of foreign exchange.

这些工厂已经取代了旅游业而成为该国最大的外汇来源。

《柯林斯英汉双解大词典》

Tourism mused to be a major source of foreign exchange.

旅游业向来是外汇收入的重要来源。

youdao

This boon, which has helped make exports to the EU the country’s biggest source of foreign exchange, worth $3.3 billion last year, is up for review.

这项在去年价值33亿元的恩惠亟待重置。 它曾经使斯里兰卡向欧洲的出口成为其主要外汇来源。

youdao

The country's vital cashew nut crop provides a modest living for most of Guinea-Bissau's farmers and is the main source of foreign exchange.

BBC: Guinea-Bissau profile

Under a trade deal with the European Union called GSP-plus, Sri Lanka's garment exports (its second-largest source of foreign exchange) enjoy duty-free access to the EU. But GSP-plus hinges partly on human rights.

ECONOMIST: Sri Lanka

And remittances, a big source of foreign-exchange revenue in the region, could fall steeply in a prolonged slowdown.

ECONOMIST: Central Asia and the financial crisis: After the boom | The