hair cracking

例句：

1. 1. The old man's hair was starting to crack.
   老人的头发开始开裂了。
2. 2. The cold weather caused the ice on the lake to crack.
   寒冷的天气导致湖上的冰裂开。
3. 3. As she grew older, her hair started to crack more easily.
   随着年龄的增长，她的头发更容易开裂。