Shàonián bù shí chóu zīwèi, zhǎngdà cái dǒng fùmǔ de xīnláo.
Youth does not know the taste of sorrow; only after growing up does one understand parents' toil.
Huíxiǎng dāngnián qiǎng shuō chóu de rìzi, zhēn shì shàonián bù shí chóu zīwèi.
Looking back on those days of forced melancholy — truly, the young don't know what real sorrow tastes like.