deltaic

例句：

1. 1. The deltaic region is home to a rich variety of marine life.
   三角洲地区是丰富海洋生物的家园。
2. 2.The deltaic landforms are characterized by their distinctive shapes and sizes.
   三角洲地貌以其独特的形状和大小而著称。
3. 3.The deltaic plains are prone to flooding during high tides.
   三角洲平原在高潮时容易发生洪水。