noun 下载 🔗分享 沙洲,珊瑚礁岛。 A small, low island largely made of sand or coral. Examples : "We took a boat to a small, sandy cay where we spent the day snorkeling and building sandcastles. " 我们乘船去了一个小小的沙洲,我们在那里浮潜、堆沙堡,度过了愉快的一天。 geography environment nature 与AI对话词汇游戏阅读练习