sea squirt
柯林斯詞典
1. N any minute primitive marine animal of the class Ascidiacea, most of which are sedentary, having a saclike body with openings through which water enters and leaves 海鞘→see also ascidian
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1. N any minute primitive marine animal of the class Ascidiacea, most of which are sedentary, having a saclike body with openings through which water enters and leaves 海鞘→see also ascidian