排序操作只能访问排序字段的值。

The sorting process only has to access the sort field's value.

youdao

排序字段的类型和规模的蔬菜作物。

Sort the field of crops by vegetable type and size.

youdao

现在不需要每次都调用sprintf，对hash表中的每一项，只需要调用一次该函数，就可以在hash表中生成一个排序字段，然后在排序时就可以使用这个排序字段了。

Instead of calling sprintf all those times, we call it just once for each item in the hash in order to generate a sort field in the hash, and then use that sort field directly during the sort.

youdao