are to copy and to extend (append), with "slicing" being common enough that
Spotify × Liquid Death 打造「骨灰盒音箱」
，这一点在heLLoword翻译官方下载中也有详细论述
But more than 2,000 job applications later he is still hunting, trying to make ends meet with jobs in package delivery and landscaping.
No base class to extend, no abstract methods to implement, no controller to coordinate with — just an object with the right shape.