如何发生的 Japans Tsunami How it Happened

无论发生何事 happen what may

任何事都会发生 Anything can happen

任何一次发生 any one occurrence ; a.o.o

如何发生 how did it happen

这是如何发生 how did that happen

它是如何发生 how did it happen

没有任何事发生 Nothing happened ; There is no event occurred

诗不能使任何事发生 Poetry makes nothing happen

这次事故是如何发生 how did the accident happen