To become pale.

• 变苍白

To become pale.的用法和样例：

例句

1. She turns pale at the sight of blood.
   她看到血就脸色变苍白。
2. Andrea did more than tremble this time, he turned pale.
   安德烈这次不仅打了一个寒颤，而且脸色都变苍白了。