facing
noun uk/ˈfeɪ.sɪŋ/ us/ˈfeɪ.sɪŋ/
[ C or U ]（尤指衣领和袖口的）衬里，贴边，镶边
an extra layer of material sewn to the inside edge of a piece of clothing to make it stronger, or to the outside, especially of collars and the ends of sleeves, for decoration
a blue jacket with white facing 有白色镶边的蓝色短上衣
[ C ] mainly UK (US usually veneer)墙面；面层
an outer layer covering a wall, etc.
The wall was built of rubble with a facing of stone. 墙壁以粗石砌成，石头覆面。