As in Asia, contact with infected birds is the principal source of infection.

如同在亚洲一样，接触受感染的禽鸟是主要感染源。

youdao

Across the seas and oceans of Asia, islands and the waters around them are frequently a source of dispute and even military confrontation.

——横跨亚洲海洋的岛屿和其四周的水域通常是争议、甚至是军事对峙的根源。

youdao

Those glaciers are the source of most of the major rivers in Asia.

这些冰川是亚洲大部份大河的源头。

youdao

For many investors in Asia, gold's role as a source of safety and value has been reinforced over the past year of economic uncertainty.

VOA: standard.2010.07.21

At the same time, many companies in Asia source a sizable percentage of raw materials from their own country, so they are paying relatively less for inputs -- yet they sell in U.S. dollars.

CNN: Money & Investing

Oklahoma City-based Chesapeake began looking to Asia as a source of capital, says Mr. McClendon, the CEO.

WSJ: China Foothold in U.S. Energy

Shares dropped 40% between July and October 1997 because recession in Asia threatens major source of revenues, but has since rebounded 30%.

FORBES: Europe