我想罗嗦一下，质量，而不是摩尔数。
转身数的总和必须是零，这是为了避免陷入某些环路，比如大写字母 G形状的环路（在纸上试着走一下这个形状，就会明白我的意思）。
The requirement that your turns sum to zero is necessary to keep you from getting caught in certain loops, such as one shaped like a capital G (try it out on paper to see what I mean).
助教数一下吧，因为我不想做，保持手举着。
Would one of the TAs count, because I don't want to. Just hold your hands up.
81-以防万一你母亲疏忽了你的教育，我应该解释一下吸血鬼数。
81 - in case your mother has neglected your education I should explain about vampire Numbers.
我们可以先用一下，然后加个负号，但是我要说明，ndS正好是这个的相反数。
Well, we could use it and then subtract, but I was just going to say that ndS is actually the opposite of this.
假如你的桌数比拟多（10桌以上），我还是倡议您布置一下。
If your table count more (10 tables or more), I suggest you decorate.
我帮你数一下卖得的钱。
我帮你数一下卖得的钱。
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