some words end in" th", when they become plural ,they are added "s", but how to pronounce "th+s"?
some words end in" th", when they become plural ,they are added "s", but how to pronounce "th+s"?
is there any pronunciation rule here?
why do mouth [mʌnθ] become mouths [mʌnθs]?
mouth[maʊθ] become mouths[maʊðz] ?