You S04e04 720p Web-dl [extra Quality] ✭ 150 Common Chinese Character List [Free PDF]

Use this tool to add tone marks to pinyin or to convert tone number (e.g. hao3) to tone marks.

Although you can use the red buttons to add tone marks, we highly recommend you use the number method (e.g. hao3) for speed and placement of the accent above the correct vowel. [Hint: Type "v" for "ü"]
Note: You do not need to use this tool to enter pinyin in this dictionary.

It looks like you’re referencing a specific video file naming convention:

If you’re asking for the of the episode (spoiler-free summary): Joe Goldberg is in London under a new identity, teaching literature. This episode focuses on him investigating a murder within his elite social circle while trying to hide his own past, and the “whodunit” arc of Season 4 Part 1 continues. If you meant something else (e.g., technical details about the file, subtitles, or where to find it legally), let me know.