South Carolina faced several problems after it seceded.

VOA: special.2009.07.23

In American history our reform crusades have usually had to do with one of several objects or purposes or problems.

在美国历史上我们为理想而进行的改革,通常与如下几个目的,或意图,或者问题之一有关联

耶鲁公开课 - 美国内战与重建课程节选

"There are several problems with this notion of a failed state," "One of them is that somehow in Mexico,all of a sudden, the government has become heavily corrupted by cartels as if there wasn't corruption in the past.

VOA: standard.2009.12.18

Toyota's problems come amid a growing number of complaints, accidents,recalls and financial problems for several leading Japanese companies.

VOA: standard.2010.02.15

Health ministers of several Arab nations have agreed to only allow pilgrims with no chronic health problems and between the ages of 12 and 65 to make the journey.

VOA: standard.2009.08.09

Doctors rarely see these conditions. But studies have linked vitamin D deficiency to a number of serious health problems, including heart disease, several types of cancer, osteoporosis,diabetes, Alzheimer's disease and some autoimmune disorders.

VOA: standard.2010.05.28