Many higher end features like transparency, object shadowing, slugs, text on paths, built-in PDF output, etc. Are either not fully-functional or simply unavailable (especially in previous versions).

• 许多高端特性,比如透明化,对象阴影,slugs,路径文本,内嵌的PDF输出等等,或者没有完全实现,或者干脆没有。