短语词组短语hemicycle e 半圆形advancing hemicycle 早期循环阶段;详细翻译hemicycle arena 半圆竞技场double hemicycle diffraction 双半圆孔衍射hemicycle tale fin 半圆形尾鳍hemicycle groove surface 半圆槽曲面hemicycle double bond 半环状双键 返回 hemicycle