... She deserves a crown 她应得到花冠 But where is it now 但如今到哪去了 Mamma listen 妈妈,听听 ...
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but where it is now 你的承诺去哪了
很好。可是它现在在哪里呢?
The bear was under the pear tree over there, but where is it now?
有一只熊在那里的梨树底下,但是现在在哪里呢?
The bear was next to the pear tree over there, but where is it now?
刚才熊在那里的梨树旁,但是现在在哪里啊?
But now, hopefully, we understand where that comes from, why it is that we use the shorthand notation.
但是现在希望我们明白,那是从哪来的,我们为什么要用简化形式。
I'm not sure where it is now but it has done very well.
我不知道销售榜上它排在多少位,不过它已经卖得很好了
This is what's called the Bohr radius, and we'll explain - hopefully we'll get to it today where this Bohr radius name comes from, but for now what you need to know is just that it's a constant, just treat it like a constant, and it turns out to be equal to or about 1/2 an angstrom.
它叫做玻尔半径,我们后面会解释,希望我们今天可以讲到,波尔半径这个名称的由来,但现在你们只要记住,它是一个常数,只要把它当做一个常数对待,它等于,或者是1/2埃。
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