然后，我们将调用流中其他地方使用的功能和特征集中在一起。
Then, we clustered functions and features used elsewhere in the call flow.
我们在大学时曾用电脑制作拼贴画。其步骤是：首先，将各种材料粘在一起，然后用摄像机将图像传送到电脑上。
We used to make computer collages when I was in college by first pasting various items together and then using a video camera to transmit the image onto a computer screen.
然后，我们通过演示简单的订单处理模块的构建过程将这些概念融合在一起。
We put the concepts into use by showing how a simple order processing module could be built.
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