be part of the furniture
成為家具的一部分；變得無足輕重或習以為常
口語·形容長期存在而被忽視
英文釋義
to have been in a place for so long that one is considered a permanent fixture, often overlooked or ignored
例句
He has worked here so long that he's part of the furniture now.
典故來源
源自辦公室或家庭環境，指某人待得太久，像家具一樣被視作固定存在，常被忽略。