rubbish意思是垃圾、废物、碎屑、碎屑、垃圾，不可数。garbage这个是可数的，Garbages should be dumped into garbage can. 垃圾应倒进垃圾桶内。
（1）They had piled most of their rubbish into yellow skips.
（2）He described her book as absolute rubbish.
（3）He's talking rubbish
（4）These reports are total and utter rubbish.
（5）The result also often has only "scope" but no "depth" and exists plenty of rubbishes.
原义为禽类内脏。词源不详，可能来自PIEsker, 切，撕，词源同shear, carve.