第一个列包含一个常量值(“All”)，并且经过了排序。

The first column contains a constant value (" All ") and is sorted. This lets you read the same field out of each document with this keyword lookup formula.

youdao

第一个列包含一个常量值(“All”)，并且经过了排序。

The first column contains a constant value (" All ") and is sorted. This lets you read the same field out of each document with this keyword lookup formula.

youdao