adj.不成文的,口头的,口传的,没有记录的,白纸一张的
May be unwrought so.
也会声沉影寂.
Gems unwrought can do nothing useful.
玉不琢,不成器.
Platinum unwrought or in semi - manufactured forms , or in powder form.
铂,未锻造、半制成或粉末状.