spare someone's blushes

US /sper ˈsʌm.wʌnz ˈblʌʃ.ɪz/
UK /sper ˈsʌm.wʌnz ˈblʌʃ.ɪz/
"spare someone's blushes" picture
1.

免除某人的难堪, 不让某人脸红

to avoid embarrassing someone or making them feel ashamed

:
I decided not to mention his mistake, to spare his blushes.
我决定不提他的错误,以免他难堪
The teacher changed the subject to spare the student's blushes after he gave a wrong answer.
学生答错后,老师换了个话题,以免学生难堪