I didnt' get "in" in "all of the worst in fast-food outlets & malls".
Did it mean "all of the worst fast-food outlets & malls"?
Context: "Miracle Mile" it is sometimes called -- where a mile or more of street (usually a main thoroughfare entering or leaving a town) becomes the site for all of the worst in fast-food outlets & malls. Seems to me that it is a terrible way to enter a community and be introduced to its supposed identity. You can hardly tell one Miracle Mile from the next.
Top answer
e. "all the worst kinds of fast-food outlets and malls". Or: "the worst parts of the set {fast-food outlets+malls}".
— PoorRichard
e.
"all the worst kinds of fast-food outlets and malls".
Or: "the worst parts of the set {fast-food outlets+malls}".
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In many towns, as you drive into town, the first thing you must pass through is the section of fast-food restaurants, called "Miracle Mile" in this article. This is your "introduction" to the town.
So it means "introduce the visitor (by car) to the town".
"one X from the next" or "more Z than the next" are strange English idioms in which "next" often means "previous".