1ADJ-GRADED （照片）有颗粒的，模糊不清的 A grainy photograph looks as if it is made up of lots of spots, which make the lines or shapes in it difficult to see. （照片）有颗粒的，模糊不清的
...grainy black and white photos.
模糊不清的黑白照片
2ADJ [usually ADJ n]（表面或质地）粗糙的;粒面的Grainy means having a rough surface or texture, or containing small bits of something. （表面或质地）粗糙的;粒面的