偶然看见

• Once when emily dickenson ' s father noticed a briliant display of northern lights in the sky over massachusetts , he tolled a church bell to alert townspeople
  有一次，当著名的诗人埃米丽迪金森的父亲偶然看见马萨诸塞州上空一道炫目的北极光时，他立刻跑到教堂鸣钟以告知所有的市民。