fracture appearence

例句：

1. 1.The old wooden chair had several fractures.
   那把旧木椅有很多裂缝。
2. 2.The car's engine has a fracture in the cylinder head.
   这辆车的引擎缸头有裂纹。
3. 3.The ice cracked under her feet as she stepped on it.
   她踏在冰上时，冰裂开了。