1·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。
2·Two factors lie behind this change.
这一变化下暗藏着两个因素。
3·Two things lie behind this social progress.
这一社会进步得益于两方面原因。
4·Two things lie behind Latin America’s renaissance.
拉丁美洲的复兴背后有两点因素。
5·Several reasons lie behind America's loss of potency.
美国丧失权威的原因多种多样。
6·The grim facts which lie behind the facade of gaiety.
隐藏在欢乐后面的严酷事实。
7·Something else must lie behind your sudden interest in football.
你突然对足球感兴趣肯定是有原因的。
8·"Boxed in" elements lie behind filigree screens or glass enclosures.
掐丝屏风或玻璃封闭间的背后，掩藏着“置入盒中”的设计元素。
9·I'm interested in the philosophical issues which lie behind this question.
我感兴趣的是这个问题背后的哲学根源。
10·Dr Heard suggested economic reasons might lie behind the new marriage story.
赫德博士认为，经济因素可能是这一新婚姻现象背后的动力。