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- Mary couldn't understand what on earth the teacher meant. 玛丽不理解老师说的究竟是什么意思。
- What on Earth is the Public Finance? 究竟什么是公共财政?
- What on earth is the matter here? 到底发生了什么?
- What on earth is the matter over there? 那里到底发生了什。
- Facing such strong expressive and visual impact works, what on earth the kind of task remained for you? 面对这些表现力和视觉冲击很强的作品，留给你和使你回味的究竟是什么味道呢？
- In China What On Earth is the Modern Art? 现代艺术在中国到底是什么?
- What on earth is the matter there? 那里到底是怎么回事？
- He saw the film several times; I wonder what on earth he saw in it. 他这场电影看了好几遍了，我不知道他究竟喜欢这个电影的什么。
- If the lower order does not set us a good example, what on earth is the use of them? 假使下层人士不给我们作出好榜样的话，那么他们到底有何用处呢？
- The reason is what has been stated in Chapter 2 . 原因就是在第二章论述过的。
- Nevertheless, what on earth the benefit would be-is an issue in the scientific area worthing studying. 但这一效益究竟如何，成为亟待研究的科学问题。
- What on earth are you gabbling about? 你到底在咕噜些什么?
- The reason is it that I have faith in her. 理由是我相信她
- What on earth will he get up to next? 下一步他究竟要耍什麽花样?
- The reason is it that I do not believe him. 理由是我不相信他
- For pity's sake！What on earth is this? 我的老天！这究竟是什么玩艺儿?
- The reason is simple: I sing out of tune,you see. 原因非常简单: 你要知道，我唱歌走调。
- What on earth is going on with that young couple? 那对小夫妻究竟怎么了?
- The reason is blindingly obvious. 原因十分明显。
- Entries like this are one of my favorite parts of the gazetteer: trying to quiz myself and remember when places were mentioned in the books, and what on earth the reference was about. 像这一条这样的条目，是地名词典里我最喜欢做的事情之一：考问我自己是不是能记起书中哪里出现了这个地名，还有到底这个名字有什么意义。
