underhand service下手发球;低手发球;动手发球
underhand stroke低手击球;下手击球
underhand stope下向梯段工祖;下向回采
underhand means不正当的手段
Underhand Serve下手发球
underhand shot低手投篮;低手发球;低手射门
underhand attack下手攻击
underhand d秘密既
underhand toss下手抛球
ADJ（形容词） If an action is underhand or if it is done in an underhand way, it is done secretly and dishonestly. 秘密的; 不诚实的 [usu ADJ n] [表不满]
...underhand financial deals.
…秘密的金融交易。
ADJ（形容词） You use underhand or underhanded to describe actions, such as throwing a ball, in which you do not raise your arm above your shoulder. (投球等) 低手的 (指手不过肩) [美国英语][ADJ n]
...an underhand pitch.
…一次低手投球。
ADV（副词） Underhand is also an adverb. 低手地 [ADV after v]
In softball, pitches are tossed underhand.
垒球运动中投球均是低手式投。