That's the "TMC 2" in the regular expression toward the top of the block.

那是接近代码块顶部的正则表达式中的 “TMC2”。

youdao

Map and grep evaluate a block or an expression for each element of a list.

Map和grep对列表的每个元素计算块或表达式。

youdao

The title block USES the abbreviation expression.

标题栏用缩写表示。

youdao

For example, you can use an empty expression as the last expression in a block expression.

例如，您可以使用空白运算式做为区块运算式中最后一个运算式。

youdao

For example, you can use an empty expression as the last expression in a block expression.

例如，您可以使用空白运算式做为区块运算式中最后一个运算式。

youdao