We've looked so far really at two non-scalar types. And those were tuples written with parentheses, and strings.

关于这两种基本类型我们已经,学的相当多了,包括哪些元组和字符串类型。

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so you tend to move along in the program with a smaller group of students.

所以你一般跟人数比较少的一组学生一起学这些课程。

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