hold your head up high
US /hoʊld jʊər hɛd ʌp haɪ/
UK /hoʊld jʊər hɛd ʌp haɪ/

1.
胸を張る, 堂々とする
to be proud and confident, especially in a difficult situation or after making a mistake
:
•
Even after the defeat, the team managed to hold their heads up high.
敗北後も、チームは胸を張っていた。
•
She made a mistake, but she needs to hold her head up high and learn from it.
彼女は間違いを犯したが、胸を張ってそれから学ぶ必要がある。