PHRASAL VERB If you refer to what lies behind a situation or event, you are referring to the reason the situation exists or the event happened. 是造成…的原因
It seems that what lay behind the clashes was disagreement over the list of candidates.
造成冲突的原因好像是对于候选人名单意见不一致。
Now, to sum up, in today's lecture, we have reviewed some of the reasons or factors that lie behind the popular use of English as the number one world language.
现在，总结一下，在今天的课上，我们回顾了英语作为世界第一语言的流行背后的一些原因或因素。
Two factors lie behind this change.
这一变化下暗藏着两个因素。
Two things lie behind Latin America’s renaissance.
拉丁美洲的复兴背后有两点因素。
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