Háizimen wéi chéng yí ge bànyuán tīng lǎoshī jiǎng gùshi.
The children gathered in a semicircle to listen to the teacher's story.
Tips
usage
Add 形 to make the adjective 半圆形 (semicircular). The 半 (half) + shape pattern is productive: 半圆 (semicircle), 半球 (hemisphere), 半月 (half moon / crescent).
