a thing
a thing — 慣用語
慣用語
a thing
idiomAn informal expression used especially in negative sentences to mean 'anything' or 'anything at all', and in questions to ask whether something exists or is commonly done.
任何事物（常用於否定句或疑問句，表示『任何東西』或『是否常見』）
I searched everywhere but did not find a thing in the empty house.
Putri asked her brother whether putting pineapple on pizza was really a thing.
Theo shrugged and said he did not know a thing about the missing bicycle.