carpet vs blanket rug mat towel

carpet  地毯

  : a heavy fabric cover for a floor

  : a thick covering : a thick layer of something

  指旅館鋪在地板上的地毯，整個房間都是
  面積範圍大

The floor is covered with a carpet .
地板上鋪著地毯。

A carpet of leaves covered the ground .
一層厚厚的落葉覆蓋在地上
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blanket  毛毯，毯子

: a covering made of cloth that is used especially
  on a bed to keep you warm
: a mass of something that covers an area
: a general mood

    指厚實的棉、毛織品，用於鋪床或披在身上保暖的毛毯

A blanket keeps us warm because it is woolen and thick
毯子给我們保暖,因為它用羊毛制成而且很厚
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rug   小地毯

: a piece of thick, heavy material that is used
  to cover usually a section of a floor
: a small wig that is usually worn by a man to cover a bald spot
: a blanket that you put over your lap and legs to keep them warm

 （鋪於室內部分地面上的）小地毯；毛皮地毯

A thick , woolen rug covers the floor behind the desk .
一塊厚羊毛小地毯鋪在寫字臺後面的地板上
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mat  地蓆；草蓆

a small piece of thick rough material which covers part of a floor

He spread a mat on the floor .
他在地板上鋪上一張蓆子

She hid the key under the door mat .
她將鑰匙藏在擦鞋墊下

towel  毛巾，手巾；紙巾

She wrapped her hair up in a towel .
她用毛巾把頭髮包起來
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面積 :　carpet  > blanket  > rug = mat  > towel