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- What on earth are you gabbling about? 你到底在咕噜些什么?
- What on earth will he get up to next? 下一步他究竟要耍什麽花样?
- 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。
- He can never understand what on earth she's at. 他永远也无法了解她到底想干什么。
- Tom did not know what on earth to answer. 汤姆不知道到底怎么回答。
- He asked them what on earth they were playing at. 他问他们究竟是怎么回事。
- What on earth have you done to your hair ? 你怎么把头发弄成这个样子?
- What on earth are you doing now? 你究竟在干什么?
- What on Earth Does Aesthetics Research? 美学究竟研究什么?
- I don't know what on earth he's playing at. 我不清楚他究竟在干什么。
- What on earth have you done to your hair? 你怎么把头发弄成这个样子?
- What on earth have you been doing th ese days? 这些天你究竟到哪儿了?
- For pity's sake！What on earth is this? 我的老天！这究竟是什么玩艺儿?
- I will stay and see what on earth would happen. 我留下来看下一步究竟会怎么样。
- Do you know what on earth sharks feed on? 你是否知道鲨鱼到底吃些什么?
- What on Earth is the Public Finance? 究竟什么是公共财政?
- What on earth are you up to recently? 你最近到底在忙些什么?
- What on earth do you want me to do? 你究竟想要我干什么?
- What on earth does the creature mean? 人生究竟是怎么一回事?
- What on earth is going on with that young couple? 那对小夫妻究竟怎么了?
