The major components of our energy systems, such as fuel production, refining, electrical generation and distribution, are costly installation that have lengthy life spans.
出自-2015年12月阅读原文
Then you had a few companies involved, but not one of the largest companies in the world coming out with a lengthy and impassioned post, like we saw yesterday from timothy Cook.
2017年12月六级真题(第三套)阅读 Section B
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
漫长的;冗长的;长期的
You use lengthy to describe an event or process which lasts for a long time.