yellow flag

美 
英 
  • n.黄鸢尾;黄菖蒲;黄旗
  • 网络检疫旗;黄色旗;黄旗标志
yellow flag
n.
1.
黄鸢尾;黄菖蒲a type of yellow iris (= a flower) that grows near water
2.
(表示船上有疫情而挂起的)检疫旗,黄旗a yellow flag on a ship showing that sb has or may have an infectious disease