tā / chéng nuò / àn shí / wán chéng / dàn / yán xíng bù fú / zuì hòu / shī xìn / yú rén

他承诺按时完成，但言行不符，最后失信于人。

He promised to finish on time, but his words didn't match his deeds, and in the end he lost people's trust.