a sharp angle

a sharp angle [ə ʃɑ:p ˈæŋɡl]  [e ʃɑrp ˈæŋɡəl] 

a sharp angle 基本解释
锐角;
a sharp angle 网络解释

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1. 锐角:a sham battle 军事演习 | a sharp angle 锐角 | a sheet of 一张