Unpleasantly verbose, especially compared to Kotlin. They'd have come up with a much better approach if they had to add it to their list of current implementations.
C# $"{x} plus {y} equals {x + y}"
Visual Basic $"{x} plus {y} equals {x + y}"
Python f"{x} plus {y} equals {x + y}"
Scala s"$x plus $y equals ${x + y}"
Groovy "$x plus $y equals ${x + y}"
Kotlin "$x plus $y equals ${x + y}"
JavaScript `${x} plus ${y} equals ${x + y}`
Ruby "#{x} plus #{y} equals #{x + y}"
Swift "\(x) plus \(y) equals \(x + y)"
Java STR."\{x} plus \{y} equals \{x + y}"
