annulus

解释
环; 轮; 体环;

同义
doughnut anchor ring annulus halo ring
词性
n
解释
a toroidal shape
示例
a ring of ships in the harbor|a halo of smoke

同义
skirt annulus
词性
n
解释
(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar
示例
None