单词	round angle
释义	round angle noun : an angle of 360° or 2 π radians Word History First Known Use circa 1934, in the meaning defined above
随便看	tighten one's belt tighten the noose tighten the purse strings tighten the screws tighten the thumbscrews on tighten up tighten/put the thumbscrews on tightened tightened up tightener tighteners tightening tightening up tightenings tightens tightens up tighter tightest tightfisted tightfistedness tightfistednesses tightish tightlier tightliest tightlining

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