red flag

英 美
  • n.红旗;危险信号;(喻)惹人生气的事物
  • flag n.旗;旗帜;信号旗vt.(以旗子)标出v.无力地下垂;减退;枯萎
  • red adj.红色的n.红色
Noun:
  1. a flag that serves as a warning signal;

    "we didn't swim at the beach because the red flag was up"

  2. the emblem of socialist revolution

  3. something that irritates or demands immediate action;

    "doing that is like waving a red flag in front of a bull"

    用作名词 (n.)
    1. A red flag slowly went up the pole.
      一面红旗徐徐升起。
    2. Let's book him in at the Red Flag Hotel.
      我们替他在红旗旅馆订个房间吧。
    3. A red lamp is used as a danger signal.
      红灯用作危险信号。
    4. If I were advising him, I would say that the elation of his party's progressive wing is a red flag.
      如果让我给他提建议,我会说,民主党中进步派的洋洋得意是一个危险信号。