In the sentence, "looked like a million dollars" is an idiom. An idiom is referred to as a term through which the meaning cannot be gotten literally from the words that it is made from.
An idiom is a group of words which has a meaning that's completely different from the meanings of the word on its own.
An example is saying someone has a cold feet. It doesn't mean that the feet of the person is cold but rather, it means that the perosn is nervous.
if you're interesting in what they're saying, you might wanna know more about it. or maybe you dont fully get it and you're asking so you can understand
Child labour refers to the exploitation of children through any form of work that deprives children of their childhood, interferes with their ability to attend regular school, and is mentally, physically, socially and morally harmful.