When does such a silent pain end?

这无言的伤痛何时休？

youdao

And smile is sign of silent pain.

浅笑，有时分是一种没有说出口的伤痛。

youdao

To take their minds off the pain, the boys tell jokes in the house, rather than just stay silent.

为了让他们忘却痛苦，男孩们在家里讲笑话，而不是一味地保持沉默。

youdao

Lera approached one, an image of the Holy Mother, silent pain in her flat painted eyes.

NEWYORKER: The Repatriates

Indeed, even Syrians who do not actively support the revolution will feel the pain of remaining silent while the al-Assad regime entrenches itself with increasing violence, if that were possible.

CNN: Syrian isolation marks regime's nadir