直接在 YouTube 描述中显示视频缩略图。一眼即见，毫不费力。你想看的图片，就在眼前。
This extension automatically inserts a thumbnail image to the description area on YouTube. No actions needed. Just install then watch any YouTube videos.
直接在 YouTube 描述中显示视频缩略图。一眼即见，毫不费力。你想看的图片，就在眼前。
This extension automatically inserts a thumbnail image to the description area on YouTube. No actions needed. Just install then watch any YouTube videos.
