superclass sleeping compartment

例句：

1. 1. The superclass ofthe universe is the Big Bang.
   宇宙的超类是大爆炸。
2. 2. In mathematics, a superclass is aset that contains all sets.
   在数学中，超类是一个包含所有集合的集合。
3. 3. The superclass of algebraic equations is called the field of realnumbers.
   代数方程的超类被称为实数域。