不分上下bù fēn shàng xiàmake no distinction of ranks; not know one’s place; not respect one’s elders or betters
❍ 这位年轻人～，没有一点礼貌。This young man has no manners,for he doesn’t know his place. 不分上下neck-and-neck
～的总统选举结果neck-and-neck presidential election result |