You need to use a known you-get
command-line program
Can be Homebrew
installed (macOS), install command brew install you-get
to install other platforms refer to Github Home: soimort / you-GET: Dumb Downloader that scrapes at The Web
Very simple to use
# 下载单集视频
you-get https://www.bilibili.com/video/av10590361
# 下载多集视频, 属于同一个播放列表的视频就会被全部下载
you-get -l https://www.bilibili.com/video/av10590361
# 指定视频存储文件夹则在 -o 后面修改目标位置
you-get -l https://www.bilibili.com/video/av10590361 -o ~/Movies/ML