red flag

US /rɛd flæɡ/

UK /red flæɡ/

B1 中級
n.名詞危險信號
The company's high employee turnover was a red flag for investors.
n.名詞紅旗
The red flag is a symbol of socialism and communism.
n.名詞紅旗(賽車)
The race was stopped due to an accident, and the red flag was shown.

影片字幕