plastic塑料可数吗

　　Glass and plastic objects lined the shelves.

　　架子上排列着玻璃和塑料制品。

　　It's real wood ─ not one of those plastic jobs.

　　这是实木的——不是那种塑料产品。

　　Plastic flowers have always been a particular hate of mine.

　　我一向特别厌恶塑料花。

　　A plastic bag was floating in the water.

　　一个塑料袋在水中漂浮。

　　The pipes should be made of plastic.

　　这些管子应该是用塑料制作的。