longadj.长的；冗长的；久的；长音的adv.长期地；久地；用于名词后强调某事发生在某整段时间v.渴望n.长时间；长音节；囤积商品者Longmontn.朗蒙特(在美国；西经 105º06' 北纬 40º11')

1. Long-term commitments can become very expensive without careful program design.
   若没有精心的方案设计长期计划将付出昂贵的代价。
2. Much time was devoted to avoidance rather than implementation of a long-term program.
   很多时间不是用于执行长期计划，而是避免长期计划。