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崩壊， 崩潰， ほうかい
1. collapse, crumbling, breaking down, caving in
2. (radioactive) decay, disintegration
坍塌，崩溃；（放射性）衰变，解体
する， 為る
1. to do, to carry out, to perform
2. to cause to become, to make (into), to turn (into)
3. to serve as, to act as, to work as
4. to wear (clothes, a facial expression, etc.)
5. to judge as being, to view as being, to think of as, to treat as, to use...
做，作，干，执行