Half-step半音;半级的
take half a step上半步
retreat half-step撤步
Half-step FowardSwitch步超前交换;半
Half-step Arithmentic半步长算法
half-step advantage抢先半步过人
half a step半步
Half-step Fowrard Switch波长号这样设置是为了实现半步超前交换
half-step forward switching hfs半步超前交换技术
同义词：semitone