变苍白

例句：

1. 1.The old man's face was palewith fear.
   老人的脸色因恐惧而苍白。
2. 2.Her skin has turned pale from lack ofsleep.
   她的皮肤因缺乏睡眠而变得苍白。
3. 3. The sun had set, leaving thesky a pale shade of blue.
   太阳已经落下，天空呈现出一种苍白的蓝色。