break-up
/ˈbreɪkʌp/noun
1- an end to a relationship, typically a marriage（尤指婚姻关系的）破裂。
1.1
- a division of a country or organization into smaller autonomous units（国家或机构的）分裂; 瓦解, 解体：
the break-up of the Soviet Union.
苏联的解体。
1.2
- a physical disintegration of something（物体的）破裂：
large quantities of oil are released after the break-up of a tanker.
油轮破裂以后大量石油漏了出来。