rotations [rəʊ'teɪʃnz]以下由轻松背单词网站提供
单词级别附加级基本释义旋转( rotation的名词复数 ); 转动; 轮流; 轮换参考例句Farmers traditionally used long-term rotations of hay, pasture, and corn. 农民以往长期实行干草、牧草和玉米轮作。The crankshaft makes three rotations for each rotation of the rotor. 转子每转一周,曲轴转3周。 推荐阅读 |