cleavage breakage

例句：

1. 1.The rock is cleaving apart underthe weight of the earth's pressure.
   这块岩石在地球压力下正裂开。
2. 2.The car's engine has acleavage in the middle that causesit to smoke.
   汽车的发动机中间有一个裂缝，导致它冒烟。
3. 3. The old treehad several cleavages that werecausing it to fall over.
   这棵老树有几个裂缝，导致它倒塌。