斩钉截铁

态度斩钉截铁

tàidu zhǎndīng-jiétiě

His attitude was firm and resolute

他斩钉截铁地拒绝

tā zhǎndīng-jiétiě de jùjué

He firmly refused.

回答得很斩钉截铁

huídá de hěn zhǎndīng-jiétiě

Answered with firmness and decisiveness