基础释义
柯林斯词典释义

福克斯词典 \ 英汉词典 \

semicircles是什么意思？

semicircles

n. 半圆形，半圆形的周长，半圆形的东西( semicircle的名词复数 )；

柯林斯高阶英汉双解学习词典释义

N-COUNT

半圆;半圆弧;半圆形

A semi-circle is one half of a circle, or something having the shape of half a circle.
例句
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。

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