除了陈旧、失修之外，巴西基础设施领域还有其 他问题，那就是它们小得无法满足当前的人员及物资使用需求，适应未来增长就更无从谈起了。
Not only is much of it old and in disrepair, but Brazil's existing infrastructure is too small to handle the volume of people and goods currently using it-let alone accommodate new growth.
它们主要提供一些学习资源，学习的动态过程无从体现，没有发挥教师的即时指导、监控、调节等作用，缺乏对适应学生特征的个性化学习支持手段。
These systems, which are short of individual learning support to the student, are hard to offer such functions as real time guidance, monitoring, adjusting, etc.
它们主要提供一些学习资源，学习的动态过程无从体现，没有发挥教师的即时指导、监控、调节等作用，缺乏对适应学生特征的个性化学习支持手段。
These systems, which are short of individual learning support to the student, are hard to offer such functions as real time guidance, monitoring, adjusting, etc.
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