The letter "O" is shaped like a circle.
字母“O”的形状就像一个圆圈。
Generally for metal circle rod-shaped, each section may have the different diameter.
一般为金属圆杆状，各段可以有不同的直径。
The memorial has a large wall that is shaped in a half-circle.
纪念馆有一个半圆形的巨大墙壁。
The memorial has a large wall that is shaped in a half-circle.
纪念馆有一个半圆形的巨大墙壁。
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