reduce函数将对计数器(只是一些值为1的整数)进行总计。因此，提供给我的是在目标地震文件中某一个日期出现的次数。

My reduce function will then sum up the counters (which are just integers with the value of 1), thus providing me with the number of times a date occurs in a target earthquake file.

youdao

我们可以详细地制定一些Windows的图标并指派给我们的文件夹和文件。

We can have detailed customization of Windows by creating our ICONS and assigning them to our folders and files.

youdao

我们让人们录下他们每天的非正式对话并把MP3文件寄给我们，相应地我们也会向他们支付一些报酬。 这些文件可以帮助我和我的团队更加深入地研究口语。

We are calling for people to send us MP3 files of their everyday, informal conversations in exchange for a small payment to help me and my team to delve deeper into spoken language.

youdao