unexplained例句
How such extensive damage could have been sustained so quickly remains
unexplained.
如何这么快就造成这么大的破坏依然不得而知。
He died in
unexplained circumstances.
他死因不明。
Soon after leaving Margate, for some
unexplained reason, the train was brought to a standstill.
离开马盖特不久，不知什么原因，火车突然停了下来。