让科学家们困惑了这么长时间的到底是为什么会有宇宙呢？
What baffled scientists for so long is why is there a universe at all?
这些鸡毛蒜皮的事到底是为什么？
那时你会明白，如此努力到底是为什么。
在此我会试着解释这到底是为什么。
我不信。告诉我到底是为什么！
小伙子这么激动，到底是为什么呢？
到底是为什么，他呼吁在这个时候我的电话号码？
我自己也觉得很可笑，我说，我们到底是为什么吵架呢？
“为什么，到底是为什么呢？”一只蝴蝶振翅沿着阳光飞过。
"Why, indeed?" said a Butterfly, who was fluttering about after a sunbeam.
好吧，我们到底是为什么，不能把每一天当作最后一天来过呢？
所以我想知道到底是为什么…如果…如果真的是像他说的那样。
医生也说不上来到底是为什么，但我明白肯定是因为喝酒的缘故。
The doctor was not sure what happened but I'm pretty sure it was because of the drinking.
为什么？就像我们常常想的那样，如果原因在你我，这到底是为什么？
明白了到底是为什么你这样倒霉，可以帮助你用最好的方法摆脱脚臭。
Knowing why you have this unfortunate problem can help you figure out how best to get rid of it.
可是在今天的龟兔故事中，乌龟却战胜了兔子。这到底是为什么呢？
But in today 's tortoise and the hare in the story, the turtle had to overcome the rabbit. Why is it so?
还完全清楚这到底是为什么，但是可能要归因于大脑如何感受这些信号。
It's not entirely clear why, but it probably comes down to how the brain perceives these signals.
金钱，地位，成功，随心所欲，还要有什么？人到底是为什么而活着？
Money, the status, the success, follow one's inclinations, besides, what does he want to have? Why do people alive?
摘要：我们早已了解，红葡萄酒中的白藜芦醇有助于预防心血管疾病，但这到底是为什么呢？
ABSTRACT: This article shows why red wine is good for you and can prevent heart disease.
那夜色正悄悄浸透窗台上那盆咖啡木纯洁的心房，我悄悄的从床上溜下来，看看到底是为什么？
That dim light of night is being steeped with a windowsill quietly mounting that pure basin coffee wood atrium, I sneak away down on secondary silent bed, seeing the bottom is why?
真的有好几次都累的差点晕了过去，我真的不知道这的努力到底是为什么了，我一点都不明白，是自己的明天吗？
On several occasions are really tired of the almost fainted, I really do not know if this is why the efforts in the end, and I do not understand their own tomorrow?
真的有好几次都累的差点晕了过去，我真的不知道这的努力到底是为什么了，我一点都不明白，是自己的明天吗？
On several occasions are really tired of the almost fainted, I really do not know if this is why the efforts in the end, and I do not understand their own tomorrow?
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