一面红旗

red flag───n.红旗；危险信号；惹人生气的事物

red flags───红旗；危险信号

red-flag───n.红旗；危险信号；惹人生气的事物

corner flag───角旗

blue flag───蓝旗；蓝菖蒲；蓝鸢尾

false flag───假标志

green flag───绿旗（警告信号）；绿旗（表示比赛开始）

reflag───改变（商船）的注册国

sweet flag───白菖蒲；菖蒲

It is certainly a red flag," Markel said.───Markel说，这当然是个危险信号。

Hidden state is a red flag.───任何隐藏状态都是一个危险信号。

red flag rose up before the building.───红旗从大楼前升了起来。

The mere mention of his hated cousin's name was like waving a red flag in front of him.───只要一提他那个讨厌的表兄弟的名字，他就生气。

The fact that this announcement came just a week after Whitman's election to HP's board should raise a red flag to shareholders.───惠特曼宣布加盟凯鹏华盈的时间距离入选惠普董事会仅仅只有一周，这一事实应该引起惠普股东们的警惕。

The absence of any of these four factors should be a red flag that the so-called report could really be a pump and dump marketing ploy.───这四个因素少了哪一项都应该是危险信号：所谓的研究报告可能真的是一个拉高出货的市场计谋。

A strictly revenue-based turnaround strategy is often a red flag.───严格以收入为目标的复苏策略是危险的。

Also note how long his staff has worked with him. High turnover can be a red flag, and happy employees are more likely to stay put.───另外也要注意他和其团队一起工作了多久。高频率的人员流动可能是一种红色警示，快乐的员工都会选择留在同一个职位上。

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。

A red flag slowly goes up the pole.

The one who carried a red flag walked ahead.

Volcanologists now recognize these oscillations as a red flag that a volcano is entering a dangerous phase.

All we needed was a red flag to warn the locals that we might be about to frighten the horses.

A red flag meant a girl.

A red flag is often used as a danger signal.

It was a red flag, a symbol of an anti-education attitude.

Industry watchers point to the correction as a red flag for overproduction.

Now, to a neurologist, that immediately waves a red flag.