adj.卑鄙的，秘密的，阴险的，欺诈的，(投球等)低手的，手不过肩的

She agreed to the deal with an underhanded smile, implying there was more to it than met the eye.
她带着一种微妙的笑容同意了这笔交易，暗示其中可能有不为人知的内幕。
His underhanded tactics in the negotiation left us feeling betrayed and manipulated.
他在谈判中的卑鄙手段让我们感到被背叛和操纵。
The competitor used underhanded methods to sabotage our product launch, spreading false rumors about its safety.
竞争对手采取了不正当的手段来破坏我们的产品发布，散布关于我们产品安全性的虚假谣言。
The politician's underhanded attempt to discredit his opponent backfired, losing him public support.
这位政客试图诽谤对手的卑鄙手段适得其反，失去了公众的支持。
The coach was accused of using underhanded techniques to get an unfair advantage over other teams.
教练被指控使用不公平的手段来对其他队伍取得不公平的优势。
The underhanded way he dismissed her concerns made her feel undervalued and disrespected.
他轻描淡写地处理她的问题，这种卑鄙的方式让她感觉自己被忽视和不尊重。
His underhanded dealings with suppliers compromised the company's reputation for honesty and fairness.
他与供应商的不正当交易损害了公司诚实公平的声誉。
The underhanded tactics employed by the salesperson made us doubt the integrity of the entire company.
销售员使用的卑鄙手段使我们对整个公司的诚信产生了怀疑。
The boss's underhanded attempt to bypass company policy for personal gain was uncovered by an audit.
老板试图为了个人利益规避公司政策的卑鄙行为在审计中被发现了。
The underhanded way they stole credit for someone else's work was a clear case of workplace sabotage.
他们偷窃他人工作的功劳，这种卑鄙的行为显然是职场上的恶意破坏。