volcanic cycle

• 火山轮间,火山轮回

volcanic cycle的用法和样例：

例句

1. Once we have been kept in the cycle of life and death involuntarily, we are in metempsychosis.
   只要我们不自主的被囚禁在生死的循环里，就是在轮回之中。
2. In the concept of a million years of history as a unit deduce the endless cycle of life as a short Zhaolu.
   在玛雅人的观念中，历史是以千万年为单位推演的无尽轮回，人生短暂如同朝露。