But we can determine what that constant is, because we know that if we sum over all the possible states, the molecule has to be in some state, right?
我们可以确定这个常数，因为我们知道，当我们把所有的态加起来之后，粒子必定处于某个状态，对吗？
The sum of the three is constant.
三者的总和是常量。
Especially after 2000, the remaining sum growth of consumer credit of our country was a constant downward trend.
特别是2000年之后，我国消费信贷余额增长呈不断下降趋势。
Especially after 2000, the remaining sum growth of consumer credit of our country was a constant downward trend.
特别是2000年之后，我国消费信贷余额增长呈不断下降趋势。
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