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 br...
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。Soon after leaving Margate, for some unexplained reason, t...
Isolation strips should be cleared of all inflammable vegetation.隔离带上所有易燃的植被应清除.Strips of wood are bonded together and moulded by machine.木板条被黏合在一起并用机器压模成型。The grey walls were divided into artificial paneling by strips o...