noun 下载 🔗分享 儒艮，海牛。 A plant-eating aquatic marine mammal, of the genus Dugong, found in tropical regions. Examples : "While snorkeling in the clear waters of the Philippines, we were lucky enough to spot a dugong peacefully grazing on seagrass. " 在菲律宾清澈的海水中浮潜时，我们很幸运地看到了一只儒艮，它正在悠闲地啃食海草。 animal biology ocean environment nature 与AI对话词汇游戏阅读练习
