如果连我们当中最注重健康的人一整年的睡眠水平都有这么大的波动，那么我们其他人会损失多少睡眠呢？
If the most health-conscious among us have such deep swings in our shut-eye levels throughout the year, how much sleep are the rest of us losing?
是的，我很奇怪为什么九楼与十楼的售价有这么大的差别呢？
C: Yes, I just wondered why the price between the ninth and tenth floor is so different?
伽利略曾问过自己：，为什么哺乳动物只有这么大，不能更大点呢？
Galileo Galilei asked himself the question: Why are mammals as large as they are and not much larger?
青蛙惊讶了，就说：“天空就只有这井口这么大，你怎么会从天上飞老呢？”
The frog feels surprised and says, "the sky is only as big as the mouth of the well. How do you fly from the sky?"
你肯定不敢想象，一个十多岁的男孩，为什么会有这么大的勇气去扯断自己的左腿呢？
You won't imagine, a teenage boy, why there is so big of courage to break his left leg?
你肯定不敢想象，一个十多岁的男孩，为什么会有这么大的勇气去扯断自己的左腿呢？
You won't imagine, a teenage boy, why there is so big of courage to break his left leg?
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