1. Strong winds driven by gravity blow from the pole to the coastline. 受地球重力作用的大风从极点吹到海岸线。
2. Tourism accounts for a large piece of coastline economies and medicines are being found in reef ecosystems everyday. 旅游业是沿海经济的一大组成部分，而且每天都会在沿礁生态系统中发现药品。
3. Large oil tankers ran aground in Alaska and Mexico, spilling millions of gallons of oil and despoiling the coastline. 一往返于阿拉斯加和墨西哥的大型油轮，溢出的百万加仑的原油吞噬着海岸线。
