excavation of fractured apex

例句：

1. 1. The team has been working on the excavation for months.
   这个团队已经在这个挖掘工作上忙了几个月。
2. 2.The archaeologists are conducting an excavation in the ancient city.
   考古学家们正在古代城市进行挖掘。
3. 3.The excavation revealed a lost civilization buried beneath the sands.
   这次挖掘揭示了一个被沙子掩埋的失落文明。