Unlike synthetic dyes, natural dyes are not dependent on non - renewable resources.与合成染料不同的是, 天然染料不依赖不可再生资源.Conventional dyes are commonly synthetic and originate from petroleum, a non - renewable resource.传统的合成和染料通常来自石油...

不能更新的；不可再生的...

non-renewable的音标：...