单词 | round angle |
释义 | round angle in British Englishnoun another name for perigon round angle in American English an angle of 360° round angle in American Englishnoun perigon Word origin [1930–35]This word is first recorded in the period 1930–35. Other words that entered Englishat around the same time include: boondoggle, cloverleaf, old school tie, preset, uncertainty principle |
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