Erlangian arrival

例句：

1. 1. The Erlangian tribes have been arriving at thecity for centuries.
   埃兰吉部落几个世纪以来一直在这个城市出现。
2. 2. The sudden influx of tourists has caused a lot ofproblems.
   游客的突然涌入导致了许多问题。
3. 3. Theencroachment of civilization on thewilderness is a concern for many.
   文明对荒野的侵占是许多人关心的问题。