ascidian的翻译，读音
英/ əˈsɪdɪən /
美/ əˈsɪdiən /
释义：
n.海鞘类
例句
It's actually a bottom-dwelling jellyfish called a stalked ascidian, and none of them have ever looked like this before. 它其实是一种居住在海底的水母，叫做跟踪海鞘，这种形态十分罕见。