While HCC incidence is highest in East Asia and Sub-Saharan Africa, it is also increasing in the U. s primarily as a result of HCV infection.

虽然肝癌的发病率在东亚和撒哈拉以南非洲最高，但是由于丙型肝炎病毒的感染，美国的肝癌发病率也在增高。

youdao

Most of the profits reflected in Thursday's report came on greater fee income and on countermeasures to avoid losses in the U. s. sub prime crisis.

在周四公布的工行中期报告中，主要利润来自手续费和佣金收入，以及采取的对应措施所避免的美国次贷危机带来的损失。

youdao

On Saturday, the U. S. Coast Guard sent a team of special agents on small boats to surprise the smugglers after a U. S. Navy airplane spotted the sub.

周六，当美国海军飞机侦察出这艘潜艇后，美国海岸警卫队派出了一组特别探员乘坐小船出奇制胜。

youdao

Secretary Clinton's first stop will be in Kenya, where she is expected to address the U.S.-Sub-Saharan Africa Trade and Economic Cooperation Forum in Nairobi.

VOA: standard.2009.07.31

For example,in most sub-Saharan African countries, the U.N.Children's Fund says more than half the deliveries take place at home, with no skilled birth attendant present.

VOA: standard.2010.05.11

The bank had been facing increasing calls to disclose the extent of its exposure to crisis-hit U.S. sub-prime mortgages and liabilities in the subsequent credit squeeze.

CNN: Barclays sub-prime losses revealed

However, Schwab said that because the U.S. sub-prime mortgage crisis that heralded the recent economic downturn, was one of a slew of factors driving market turmoil, the World Economic Forum was ideally placed to push discussion forward.

CNN: Market avalanches hit Davos talks

The U.S. believes sub-critical experiments are permitted but hydro-nuclear tests are not.

CENTERFORSECURITYPOLICY: Center for Security Policy | Politics and the Test Ban Treaty, By George F. Will, Newsweek, 20 October 1999