phr.片語其中之一She is one of my best friends.
prep.介系詞其中之一She is one of the best students in the class.
pron.代名詞其中一個One of my friends is coming to visit.
det.限定詞其中一個One of the reasons I like this place is the friendly staff.
pron.代名詞其中一個This is one of the reasons why I left.
phr.片語少數之一This is one of the few times I've seen him smile.
det.限定詞其中之一She is one of my best friends.