They have the relevant ability, and system problems are not the cause of problem performance, but they are still not performing adequately.
他有相关的能力，也不是系统存在问题，但是他仍然不能很好的完成工作。
Large doses can cause trouble, including excessive bleeding and nervous system problems.
大剂量会引起麻烦，包括出血过量和神经系统问题。
Moreover, putting young people in prison can exacerbate the problems—a system of mentors and helpers could be provided for those who unthinkingly break the law.
此外，把年轻人关进监狱可能使问题更加严重——那些不假思索的违法者可能得到一个导师和帮手系统。
"A lot of people have health insurance, and yet they believe that the system has all kinds of problems and they would like to see major reform happen.
VOA: standard.2009.07.31
Mr.Obama said that some of problems with the system include families being torn apart, employers gaming the system and the struggles police officersface trying to keep communities safe.
VOA: standard.2010.03.21
"because the virus can spread rapidly, but what we're seeing so far is a pretty stable position as far as the virus is concerned, it's producing relatively mild illness in most people, but in a small proportion it's causing serious problems and we have in place the plans in our health care system to deal with those problems,".
VOA: standard.2009.07.31
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