您可以跟随 Eckberg 和他的班级加入他们的行列，他们跟踪来自美国的两位世界级自行车手丹和史蒂夫·布特尼的冒险经历。

You can join them, by following Eckberg and his class as they track the adventures of Dan and Steve Buettner, two world-class bicyclists from U.S.A..

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比如，一个老师会一直跟随一个班级，从一年级直到六年级。

For instance, one teacher ideally stays with a class from first grade through sixth grade.

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因此，跟随我们的示例，您可以在客户表单中显示客户的最近订单列表，方法是通过一个关系添加一个二级(second)、一些订单和一个表单。

So following our example, you can show a list of customer's recent orders within the customer form by adding a second, orders, form through a relation.

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You might want to say in the real world, if you go to a movie theater for this R-rated movie, "Are you 18 and over or are you with a parent?"

在现实世界中，你可能想说，如果你去电影院看R级电影，“你有18岁吗？,或者你跟随你的父母亲来的吗？“

哈佛公开课 - 计算机科学课程节选