英语词汇“backup ball”的翻译、意思、用法、释义-英汉汉英词典

单词	backup ball
释义	backup ball 【保龄球】(顺投手方向曲线旋转的)弧旋球以上来源于：《21世纪大英汉词典》
随便看	rigid shaft coupling rigid shear lug rigid shear lugs rigid shock rigid sidewall craft rigid solar cell array rigid spring rigid steel galvanized pipe rigid structure rigid support rigid surface heater rigid suspension rigid switch rigid system rigid temperature control rigid terminal rigid tower rigid truss rigid type clutch plate rigidulae rigid vibrator rigid wheel rigid wheel base rigid, yet uncorrupted rigil