casing
🇺🇸
/ˈkeɪsɪŋ/
🇬🇧
/ˈkeɪsɪŋ/
The outer covering or shell of something, like a protective layer.
The casing of the old building was damaged, so they decided to replace it.
這座老建築的外牆受損了,所以他們決定更換它。