cleavage of paraffin

例句：

1. 1.The crack in the wall is wide enough to hold a coin.
   墙上的裂缝足够大，可以容纳一枚硬币。
2. 2. The baby's cleavage is so delicate it needs extra care.
   婴儿的裂口如此娇嫩，需要额外的护理。
3. 3.The car's engine compartment has a deep cleavage that could be dangerous.
   汽车引擎舱有一个深裂缝，可能会造成危险。