cut sb dead; regard as a stranger; treat sb like a stranger ❍ 他们毕竟是你的亲人或熟人，你不要把他们～。After all they are your kinsfolk or acquaintances. You shouldnot have treated them as strangers.
视同路人shì tóng lù rén
把亲人和熟人看得像不认识的人一样。regard as a stranger, treat like a stranger, make a stranger of