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Welcome to English in a Minute.

Mills process things like grain or make things like steel or paper. But what might run-of-the-mill mean?

Run-of-the-Mill 普普通通的；平淡无奇的；乏味的

Anna: Dan, that is a really, really special three-hole punch.

Dan: This? Is just a run-of-the-mill three-hole punch.

Anna: I know office supplies. This is a run-of-the-mill three-hole punch. That three-hole punch is a special machine.

Dan: I'm going back to my desk now.

Anna: Maybe I can borrow it?

Something that is run-of-the-mill is easily found and not so special. This expression was first used in the late 1800s to describe goods that were not yet sorted for quality.

And that's English in a Minute!