Douban Diary does not support uploading videos directly. You can upload the time product to the website supported by the above picture, and then put the link in and call it.

If it's a group talk on Douban, you can't send a video. You can only copy and paste the video address in the voice box so that others can click the link to watch the video.

Douban is a community website. Douban was originally an audio-visual book, providing information about books, movies, music and other works. Description and comments are provided by the user.