基本解释筋斗同根派生 somesault相关词英汉例句forward somesault out of support piked 支撑接出体前空翻reverse 21/2 somesault 反身翻腾两周半inward somesault 1/2 twist 向内翻腾转体半周inward 31/2 somesault 向内翻腾三周半forward somesault 向前翻腾somesault更多例句词组短语短语somesault turn 滚翻转身somesault更多词组专业释义经济学筋斗