Red flag
01
红旗, 警告信号
something that irritates or demands immediate action
02
红旗, 警告信号
a red colored flag used to warn one of danger or as a signal that one must stop
2.1
一个警告信号, 红旗
a warning sign in a potential partner that indicates problematic or unhealthy behavior
例子
He cancels plans all the time; red flag.
他总是取消计划；红色警报。
03
红旗, 红色旗帜
the emblem of socialist revolution
