他的作弊行为让整个班级蒙羞。

His cheating ___dishonored the whole class.

由于账户余额不足，银行拒绝承兑这张支票。

The bank ___dishonored the check because there wasn't enough money in the account.

他拒绝付款，违背了双方的协议。

He ___dishonored the agreement by refusing to pay.