: The file format (Matroska Video), which is commonly used because it can hold multiple audio and subtitle tracks in a single file. Source and Uploader Tags

: This file contains two audio tracks that you can switch between—the original Korean audio and a Hindi dubbed version.

The phrase you provided is a specific file name typically used on file-sharing sites to describe a digital copy of the South Korean TV series

: These are tags for the specific release groups or websites that uploaded the file.

: The video resolution, indicating High Definition (HD) quality with 720 vertical pixels.

Below is a breakdown of what each part of that string means: