They stood in a semi-circle round the teacher's chair and answered questions.

他们围着老师的椅子站成半圆形回答问题。

柯林斯高阶英语词典

Take time to wander among Kazan Cathedral's semi circle of enormous brown columns.

花些时间漫步于喀山大教堂里巨大的棕色圆柱所围成的半圆形.

期刊摘选

Take time to wander among Kazan Cathedral's semi circle of enormous brown columns.

花些时间漫步于喀山大教堂里巨大的棕色圆柱所围成的半圆形之间.

期刊摘选