lie behind

基本解释

Client programmers using this interface have no idea what implementation details lie behind the interface.
使用这个接口的客户机程序员不知道接口背后的实现细节。
The cluster is so massive and so compact that its gravity bends and focuses the light from galaxies that lie behind it.
星系团如此紧凑、质量如此巨大，以致其重力扭曲和聚焦了它后面星系发出的光。
"The more I get to know about the elegant scientific laws which lie behind the universe, the more I see them as a reflection of the faithful sustaining activity of a creator God, " Wilkinson said.
“当我越了解宇宙之中隐藏的玄妙科学规律，我就愈发地相信它们即是上帝守信而从不间断活动的真实反映，”威尔金森说道，“基督教所理解的创世并不是指上帝点燃了宇宙大爆炸的导火索后又退归至安全距离冷眼旁观；而是指上帝对全部科学发展的进程都了若指掌，使人们不仅对宇宙之美，还有科学之精妙都赞不绝口。

He does not spell out the assets and liabilities that lie behind the total.
FORBES: How Much Is He Worth?
These principles now lie behind a long-overdue effort in Britain to reduce the number of claimants.
ECONOMIST: Welfare to work
It seems that changing social trends also sometimes lie behind the fall in property crime.
ECONOMIST: Defeating the bad guys

If you refer to what lies behind a situation or event, you are referring to the reason the situation exists or the event happened.