Off the norest coast of Australia是指位置还是范围 说大堡礁的

.is off the coast of Australia. It's off the east coast of Australia. off the coast of mexicos off the southeast coast of mainland on the coast 和off the coast的区别 off the coast 和on the coast 的区别 off the coast与on the coast的区别 Is the east coast of Australia dry or an island off the west coast of Italy翻译,另外这里的off 怎么理解? off the coast located off the coast on the coast ,off the coast