見慣了的人(或東西);存在已久故不為人注意的人(或事物)
a person or thing that you are so used to seeing that you no longer notice them
I worked there so long that I became part of the furniture.我在那裡工作得太久,都不為人注意了。
釋義來自《牛津高階英漢雙解詞典》第 9 版