他在项目最艰难的阶段不辞而别,给团队留下了难以弥补的空缺。Tā zài xiàngmù zuì jiānnán de jiēduàn bùcí'érbié, gěi tuánduì liúxià le nányǐ míbǔ de kòngquē.He left without saying goodbye during the most difficult phase of the project, leaving the team with a gap that was hard to fill.
他不辞而别,连一张字条都没留下。Tā bùcí'érbié, lián yì zhāng zìtiáo dōu méi liúxià.He left without a word, not even leaving a note.
对不起,我不该不辞而别,让你担心了。Duìbuqǐ, wǒ bù gāi bùcí'érbié, ràng nǐ dānxīn le.Sorry, I should not have left without saying goodbye and made you worry.