Hayley教口語，“某某人”用英語怎么說？

used instead of a particular name to refer to someone or something, especially when the real name is not important or you have forgotten it

某某人;某某東西

She always keeps me up to date with the latest gossip - you know, so-and-so from down the road is having a baby and so-and-so's just bought a car.

她總會把最新的小道消息及時告訴我——你知道嗎，路那頭的某某人懷上了孩子，某某人剛買了汽車。