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出典:Wiktionary
Circle
出典:Wikipedia
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squaring the circle
内接円.
resembling a circle
円を描くさま
describing a circle
a loop
to form a circle
外接円.
a big circle
円の中心.
the center of a circle
the center of a circle
ドクハキコブラ
a half circle
the circumference of a circle
rudds