The reasons of shortage include business cycle, technique progress, changes of product market and imperfect system of vocational training.

导致技能短缺的原因包括经济周期、技术进步、产品市场变化和培训制度的不完善。

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Presently, problems of singular evaluating index, imperfect system functions exist in the network evaluating system for teachers teaching quality.

目前，国内高校教师教学质量网络评价系统存在评价指标体系单一、系统功能不尽完善等问题。

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Aiming at the problem of college students' tuition due, this paper points out some main reasons such as family poverty, lacks of honesty, imperfect system and difficulties in employment etc.

针对目前高校学生欠费现象，指出家庭贫困、诚信缺失、制度不完善、就业市场严峻等因素是目前高校学生欠费的主要原因。

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We have a good system in taxes, but it's imperfect because it hasn't been thought out thoroughly in terms of risk management.

我们有很好的税收制度，但它并不完善,因为它并非完全从风险管理的角度,经过考量而得出的。

耶鲁公开课 - 金融市场课程节选

Because the financial risk management system that we have is imperfect, we aren't there yet.

因为我们的金融风险管理体系,存在缺陷，还并不完善。

耶鲁公开课 - 金融市场课程节选

It will provide a genuine challenge or those obsessed with mastering an imperfect system.

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Even in an imperfect system, the nuisance value of a threatened lawsuit is a useful weapon for the weak.

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Inspectors said young people in England and Wales were being "left to flounder in an imperfect system" and warned that their interests "must be taken seriously".

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