While that may make suborbital travel safer, it would add significant cost and complexity to an emerging industry that has until now operated largely as the playground of billionaires and dreamy engineers.
出自-2015年12月阅读原文
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
恍惚的;出神的
If you say that someone has a dreamy expression, you mean that they are not paying attention to things around them and look as if they are thinking about something pleasant.