But before I do, let me write some words about events and event programming in general.
但是在动手之前，让我先大体上介绍一下事件和事件编程。
OK, let's check. If we multiply this with a vector, Well, maybe I should do that. Let me write it on the board.
好，检查一下，如果我们把它和向量相乘，呃，我要不要写一下。我还是写在黑板上吧。
If we cannot move peoples’ souls, we cannot move their ways of living either: “Let me write the songs of a nation, and I care not who writes its laws.”
如果我们不能打动人们的心灵，也就不能改变他们生活的方式：“只要让我来谱写国歌，我不在乎谁来制定法律。”
Let me write it down on this slip of paper for you. You can show it to the taxi-driver.
我来给您写在这张纸片上。您好拿给出租车司机看。
B: Let me write it down on this slip of paper for you. You can show it to the taxi-driver.
我来给您写在这张纸片上。您好拿给出租车司机看。
B: Let me write it down on this slip of paper for you. You can show it to the taxi-driver.
我来给您写在这张纸片上。您好拿给出租车司机看。
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