a problem

• Chess playing requires the ability to think through a problem .
  下象棋需要有全面考虑问题的能力。
• Her eyes showed that she was contending with a problem .
  她的眼睛显示出她心里正有一个为难的问题。
• The outside dew point is so low that mildew is seldom a problem .
  户外霜点低，因此霜霉病很少发生。
• He focused sharply on a problem and examined it minutely .
  他敏锐地集中于一个问题，并细致地考察它。
• She felt her son had been pigeon-holed as a problem child .
  她认为自己的儿子硬被划入了有问题儿童之列。
• It's wrong to approach a problem from a metaphysical point of view .
  用形而上学的观点看待问题是错误的。
• It is wrong to approach a problem from a metaphysical point of view .
  用形而上学的观点来看待问题是错误的。
• This approach entails solving a problem by first comprehending it .
  要运用这个方法去解决问题，首先要理解它。
• The use of narcotics by teenagers is a problem in many countries .
  青少年服用麻醉药在许多国家中都是一个问题。
• Dialing distances will be extended and busy lines will no longer be a problem .
  通话距离将会延长，占线不再成为问题。