一个选项:在 Map 上使用 foldLeft 和 str 作为初始参数:

One option: use foldLeft on the Map with str as the initial parameter:

replacements.foldLeft(str)((a, b) => a.replaceAllLiterally(b._1, b._2))
// res8: String = This d is very x and I would love to mxc