That plan was inspired by watching what happened after the eruption of the Mount Pinatubo volcano in the Philippines in 1991.
这个计划受到1991年菲律宾皮那土波(Pinatubo)火山爆发的启发而产生的。
That plan was inspired by watching what happened after the eruption of the Mount Pinatubo volcano in the Philippines in 1991.
这个计划受到1991年菲律宾皮那土波(Pinatubo)火山爆发的启发而产生的。
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