color weakness

例句：

1. 1.He was color-blind and couldn't distinguish between red and green.
   他色盲，无法区分红色和绿色。
2. 2.The color-blind man found it difficult to recognize the pattern on the wall.
   这位色盲男士发现很难识别墙上的图案。
3. 3.She noticed that her daughter had a color-blindness disorder.
   她注意到女儿患有色盲症。