One way to hold this word: a power that is not from around here. Your street has its own police and its own small offices, and then there are the people who answer to the whole country. Feds is the short, spoken name for that far-away level when it shows up in your life — at your door, or in your pay slip. Because the name is always said from the outside looking in, it carries a little distance and usually a little .
Two branches
來辦事的那些人
這一群是「上面那一層」派出來、會站在你面前的人。畫面最具體：車停下來、證件掏出來、檔案被搬走。
noun · C1
A slang name for the FBI, the police force that works for the whole United States rather than for one town or state, used most often by the people it is chasing and in stories about them.
聯邦探員（FBI）
發號施令的那一整套
同樣是「上面那一層」，但這次沒有人出現，只有規定、表格和稅。看不見的權力反而更常讓人抱怨。
noun · C1
Any office or department of the United States national government, such as the tax office, talked about as one group — usually by someone who is annoyed with it.
聯邦政府（帶不滿語氣）