基本解释n.負脈沖(下沖；幅度不足)同根派生 underswing相关词英汉例句drop-back short underswing upstart 支撐後倒弧形短振屈伸上backward underswing on horizontal bar 單杠上曏後弧形擺動underswing and salto forward 弧形擺接前空繙underswing kip 長振屈伸上short underswing 短振underswing更多例句