胳膊折了往袖子里藏

gēboshélewǎngxiùzilǐcáng ㄍㄜ ˙ㄅㄛ ㄕㄜˊ ˙ㄌㄜ ㄨㄤˇ ㄒㄧㄡˋ ˙ㄗ ㄌㄧˇ ㄘㄤˊ

    • to suffer in silence
    • to keep one's troubles to oneself

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
a broken arm is hidden in the sleeve
Meaning
Suffering in silence and keeping trouble to oneself rather than complaining.

Sources