名詞 shut down:

1. termination of operations
   同義詞：closure, closedown, closing, shutdown

動詞 shut down:

1. cease to operate or cause to cease operating
   同義詞：close up, close, fold, close down

1. Some coal-mines had to shut down.
   有些煤礦不得不關閉。
2. I was in harness at the factory for over twenty years before it shut down.
   我在那家工廠關閉前在那兒工作了20多年了。