Using this method,Freud reasoned, the pain and emotional pressure of the past would be greatly weakened.

VOA: special.2010.04.13

Fungi which don't often cause infections in people with healthy immune systems but can under some circumstances, and can be tremendous problems in patients that have weakened immune systems.

真菌在免疫系统健康的情况下通常,不引起感染,但在某些情况下也会感染,那就成了极大的问题,在免疫系统脆弱的病人体内

耶鲁公开课 - 生物医学工程探索课程节选

Some scientists say a weakened ability to identify smells may be involved.

VOA: special.2009.09.15

The voice,believed to be that of Bin Laden, thus concludes President Obama is a weakened man and powerless to change course in Afghanistan because of "pressure groups."

VOA: standard.2009.09.14

"I don't think at this stage, nobody knows whether BP will be forced to be broken up, whether it might actually end up being so weakened that it falls into the arms of somebody else."

VOA: standard.2010.06.18