名词
中文翻译：半圆
同义词：
['half circle', 'semicircle']
例句：
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1. The sun is shining through the half circle of trees.
太阳透过半圆的树影照射下来。
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2. The artist painted a half circle on the canvas.
艺术家在画布上画了一个半圆。
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3. The children were playing with their toys in the half circle of sunlight.
孩子们在阳光下的半圆区域玩耍他们的玩具。