https://w3c.github.io/jlreq/#composition_of_japanese_and_western_mixed_texts

There are a lot of examples of Japanese text in which Western and/or Greek letters are mixed among Japanese letters.

"Western and/or Greek letters" should probably be "Latin and/or Greek letters". We found this during a CLReq meeting.