noun 下载 🔗分享 海岸线,海滨线 The shape, outline, or boundary of a coast. Examples : "The coastline of the island nation is very irregular, with many bays and inlets. " 这个岛国的海岸线非常不规则,有很多海湾和海峡。 geography nature ocean environment 与AI对话词汇游戏阅读练习